When I go to a KTV and don’t know how to order Japanese songs, please ask for help
Some KTV systems allow you to enter kana search, or you can directly click on the language. Generally, KTVs have a Japanese song library, but it is not complete. I am asking for help from a master in my English composition, I really don’t know how to write it
After I accept it, I will help you complete it, and you will definitely do what you say and ensure the quality. ． 7x+59=4-4x Don’t know how to solve it? Please help me
Answer: Move the unknown numbers to one side of the equal sign and the rest to the other side
7x+4x=4-59
11x= -55
x=-5 20000?-19999×20001; I know it is equal to 1, but I don’t know how to analyze it. Please help me!
20000?-19999×20001
=20000?-(20000-1)×(20001)
=20000?-(20000?- 200020000-1)
=1
Similarity can be extended to
x?-(x+1)*(x-1)=1 I don’t know what’s going on with my computer. Please help.
Oops, you have a big problem. If an English prompt like grub > appears when you turn on the computer, then according to this prompt, it should be the hard disk. There is a problem with the partition table. This requires the use of third-party software to repair the hard disk partition table. If not, then re-partition the hard disk, format it, and then reinstall the system.
You can go out and buy a Ghost version installation CD (7 to 12 yuan), or borrow someone else’s computer to use a USB flash drive to make a USB boot disk. Just put it in the bios of your computer. They are adjusted to be the first startup item at boot, so you can use these two tools to re-slot the hard drive, format it, and install the system with one click.
If you really don’t know how to operate it and are afraid of damaging the computer, then take the machine to an outside computer repair place and let them do it for you. The fee is about 30 yuan. If you are skilled, they can do it for you. It can be done in ten minutes.
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Well, you can try redoing the system first. If you still cannot boot into the system desktop normally after installing the system, then you can only split the hard drive, format, and Let’s do this again in the system
The student council will do the accounting. I don’t know how to do it. Please help me.
Outsourcing is so easy. I don’t know what outsourcing means. Baidu, please help me. I want to download 2K13 but I don’t know how to download it.
I sent you the download address via private message. If you are satisfied, please accept~ God, please help me solve the problem of not being able to connect to the broadband for some reason
1. When you cannot access the Internet, connect to the router and check the network connection status (because the router puts the dial-up process in In the device, you can see whether the dial-up is successful)
If the dial-up is not successful, of course you will not be able to access the Internet, but the router has automatic redialing, so you will be able to get online after a while.
2. When you cannot access the Internet, try to ping the gateway (that is, the router address) and the DNS server address to see if you can ping and whether the values ??are normal
3. Using the command line to enter ipconfig /flushdns can solve the problem, but the same problem occurs several times in the middle: the command used seems to be to clear the dns cache. If this is helpful, you can try to repair the local connection.
It should be a problem with the router. Is it turned on for a long time? The router is not powered off. Let the router calm down. It cannot work for a long time.
Reset the mode or it is blocked by the firewall. , and then check if the network-related services are shut down
The weather is too hot, there is a machine on the 6th floor and it will be normal after restarting it
1. It is strongly recommended to modify the dialing method of ADSL MODEM. Change the built-in dialing mode (i.e. routing mode) to the bridge mode, and use China Telecom's VClient dialing software for dialing;
2. Enable the firewall function of the ADSL MODEM device itself.
3. Modify the user name and password of the adsl cat configuration interface.
I often encounter this problem. In summary, there are several ways to solve the problem:
1. Restart the modem and restart the computer at the same time. Check whether a restarted Moden signal indicator lights up normally.
2. Check whether your client software is the latest version. If not, download it from the designated website.
3. If it is Netcom, check whether your Netcom client program has the DHCP function enabled. If not, enable it.
4. If Moden and the client are normal, then refill the system.
5. If none of the above four methods work, call the network management department and ask them. . .
I have encountered error 678. If your account and password are correct, check whether the link light on the cat is always on or flashing. Generally, it flashes for a while and then stays on after turning on the computer, indicating that it is the same. The remote broadband service is connected. If there is no flash, the connection or the server there is faulty. Generally speaking, it is the server, and it may be under maintenance or something. Another possibility is that your phone line There are extensions on the Internet, but the connection method is incorrect, resulting in disconnection. Generally, the fault of 678 needs to be solved by customer service.
Telecom LAN, of course, it is managed by Telecom, error 678, after troubleshooting the network card and network cable problem , it’s a problem with Telecom’s remote server, look for number 10000—that’s right
678 Wouldn’t you check the mode synchronization first? If it's out of sync, wouldn't you check the phone line? Also, is the telephone extension connected to a splitter? Also, are the indoor phone lines damaged? Another question is whether the network card has been replaced...
Common faults and solutions of three broadband Internet dial-up software
1. Error information of Windows XP built-in dial-up software
1.Error 691
The entered username and password are incorrect and the connection cannot be established.
Reason: The user name and password are incorrect; ISP server failure.
Solution: Use the correct username and password, and use the correct account format provided by your Internet service provider.
2.Error 797
The ADSL Modem connection device was not found.
Reasons: The ADSL Modem power is not turned on; there is a problem with the connection cable or network cable between the network card and the ADSL Modem; the corresponding protocol is not correctly bound after the software is installed; the connection is established when establishing a dial-up connection. Wrong null connection.
Solution: Check the power supply and connection cable; check the network properties and whether the PPPoE-related protocols are correctly installed and properly tied; check the properties of the dial-up connection to see if an "ISDN" is used channel - Adapter Name xx" device, this device is an empty device, you should select the correct PPPoE device to replace it, or re-establish the dial-up connection.
2. RasPPPoE dial-up software error information
1.Error 645
The network card did not respond correctly.
Cause: The network card is faulty, or the network card driver is faulty.
Solution: Check the network card and reinstall the network card driver.
2.Error 678
Unable to connect to ISP server.
Reason: The server of the ADSL network service provider is faulty, or the ADSL telephone line is faulty.
Solution: Check whether the ADSL signal light can be synchronized correctly.
3.Error 691
The entered user name and password are incorrect and the connection cannot be established.
Reason: The username and password are incorrect, and the Internet service provider's server is out of order.
Solution: Use the correct username and password, and use the correct ISP account format.
4.Error 791
The ADSL Modem connection device was not found.
Cause: The ADSL Modem power is not turned on, there is a problem with the connection cable between the network card and the ADSL Modem or the LAN cable, the corresponding protocol is not correctly bound after the software is installed, and is established when establishing a dial-up connection. Wrong null connection.
Solution: Check the power supply and cable; check the network properties, whether the PPPoE-related protocols are correctly installed and properly tied; check the properties of the dial-up connection to see if an "ISDN channel - Adapter Name xx" device, this device is an empty device, you should select the correct PPPoE device to replace it, or re-establish the dial-up connection.
5. Error 602, Error 633
The dial-up network cannot be connected because the device is incorrectly installed or is in use.
Cause: RasPPPoE is not completely or correctly installed.
Solution: Uninstall all PPPoE software and protocols and reinstall them.
3. Enter 500 dial-up software error information
1.E0040P
Reason: The ADSL Modem power is not turned on; the connection between the network card and the ADSL Modem There is a problem with the line or network cable; the corresponding protocol is not correctly bound after the software is installed; an incorrect empty connection is established when establishing a dial-up connection.
Solution: Check the power supply and cable; check the network properties, whether the PPPoE-related protocols are correctly installed and properly tied; check the properties of the dial-up connection to see if an "ISDN channel - Adapter Name xx" device, this device is an empty device, you should select the correct PPPoE device to replace it, or re-establish the dial-up connection.
2.E0037P
The entered username and password are incorrect and the connection cannot be established.
Cause: Incorrect username and password; server failure of the Internet service provider.
Solution: Use the correct username and password, and use the account format provided by your Internet service provider.
Error 718
Problem: The remote computer timed out and did not respond when verifying the user name, and the connection was disconnected
Reason: ADSL ISP server failure
p>Solution: Call your ISP to ask
It is the fault of your broadband provider, not yourself
Broadband adsl dial-up Internet users often encounter " Error 678" fault message: The Internet has been functioning normally, but one day it suddenly became unavailable, and "Error 678" and other prompts appeared during dial-up connection. Generally, users are helpless about this kind of fault, and some even suspect that the password has been stolen. Already? Generally speaking, it is not easy to judge the specific cause of this kind of failure, but after analysis, in most cases it can be solved smoothly.
The reasons and solutions for this kind of failure are explained below:
1. What does "Error 678" mean?
Broadband adsl dial-up Internet connection uses pppoe protocol, transmits data through telephone lines, and uses adsl dedicated modem to realize data modulation and demodulation. The meaning of error message 678 is: the remote computer is not responding, which means from The computer issues instructions to the network card to transmit data to the outside, including the transmission of telephone lines, the port processing of the central office (telecommunications office computer room) terminal board, and the process of returning data to the computer. If there is a data transmission problem, a 678 error will be prompted. Simply put, the network is down.
2. Common solutions and steps for users when encountering "Error 678":
1. Has your computer been touched recently? In particular, have the ADSL Modem connections and lines been changed? Please first check whether the signal light on the "cat" flashes (different cats have different indicator lights, mainly dsl, adsl, line, link, @, etc. are all broadband signal indicators). If it flashes, check whether the line is connected Connect correctly (mainly on the splitter, there are three ports, each port corresponds to a line, the connection method is the bus, which is the incoming line port, the telephone port is connected to the phone port, and the modem or adsl is connected to the broadband modem, you can also Directly connect the telephone line to the cat and try, this can rule out that the separator is broken). If the connection is correct and the flash still occurs, check if the phone line has a connector. If the line is oxidized and the contact is not good, the signal will be unstable (the phone line goes into the cat). If there is a problem with the crystal head or cable, it will also cause the line to be blocked)
2. Confirm that the adsl modem dial-up is normal. Because the IP automatically obtained by the network card has not been cleared, the network card cannot obtain a new one when dialing again. The IP address will prompt 678. The operation method is: close the adsl modem, enter the network connection in the control panel, right-click the local connection and select disable. After 5 seconds, right-click the local connection and select enable, and then enable the adsl modem dial-up. ;
3. If the first step is invalid, when turning off the adsl modem, still disable the local connection (network card), restart the computer, then enable the local connection (network card), and then turn it on Adsl modem can solve the problem;
4. If the above steps cannot solve the problem, check whether the network card light is on. If the network card light is not on, check the network card and network cable.
5. If the network card light is normal and steps 1 and 2 cannot solve the problem, uninstall the network card driver and refill the network card driver.
6. If the above operation is invalid, contact the telecommunications department to confirm the port. The author also encountered the "678" error when surfing the Internet at home. At first, I couldn't find any problems. Later, I found that the port at the telecommunications office was loose, causing the line to be blocked.
7. There is another situation that the author has encountered. If you have more than two computers at home, and the HUB port used to connect the computers is damaged, "678 error" will also occur. At this time, just change to a good port.
8. Some network conditions are normal after being tested by telecommunications, but error "678" prompts also appear. At this time, conflicts between various application software during use must be considered, which may also cause network failure. . For example, an abnormality in "Yahoo Assistant", anti-virus software or firewall may cause an error "678". Therefore, when you find the error "678" prompt, you can first try to temporarily uninstall the "Yahoo Assistant", exit the anti-virus software, or temporarily turn off the firewall, reconnect, and try to see if the problem can be solved.
9. As a last resort, you can solve the problem by restarting the "cat" and the computer to see if it works.
After the heavy rain, the broadband connection was unavailable
The specific situation is that the remote connection did not respond or a connection error popped up
The local connection in the taskbar was There is a red Card problem
I don’t have time to call someone to fix it
What are the reasons why the broadband connection cannot be connected
First of all, you need to judge the signal light of the MODEM. Generally, there are three types of MODEM The signal lights are always on and do not flash, including power light, outside line light, and inside line light. Needless to say about the power light! The external light is the signal light that determines the connection to the server, and the internal light is of course connected to the computer.
When the signal light is normal, of course you need to know what prompts are displayed when logging in using the dial-up software, because different prompts have different handling methods.
For example, error 691 is caused by incorrect account or password input, account arrears, account hangup, port connection (central office problem), etc.
Error 769 is caused by the network card being disabled, damaged, loose, etc.
Error 678 can be said to be the most complicated. There are many reasons, such as improper settings of firewalls, Internet assistants and other software, network card drivers, dial-up software, computer poisoning, etc. Of course, it may also be a server failure. Caused by this, I won’t go into details here! After doing as much self-check as possible, if you are still unable to connect, please call the customer service hotline for consultation!
The above are relatively common error codes, please try to judge.
1. The broadband signal receiver is not turned on (broadband modem)
2. The network cable is stuck and the phone line is not connected securely
3. Telecommunications problem: Telecom, China Netcom did not prepare the information for you, or did not activate it. Telecom and China Netcom's information is confusing, and you need to make the information again.
4 The account password is incorrect
5 Network card problem The broadband signal receiver (broadband modem) or the network card is broken
Note that there should be 5 on the broadband modem The lights, the connection is correct and logged in, the power light, the signal receiving light, the network card light, the transmitting light, and the receiving light should all be on. The connection is correct but there is no login, the power light, the signal receiving light, the network card light are always on
What are the reasons why the broadband connection cannot be connected
1. Interface problem. Check whether the interface connecting to the modem and the interface connecting to the host are not tight.
2. Modem or line If there is a problem, check whether the link light of your modem is always on. If it is flashing, it means there is a problem.
If it still doesn't work after restarting the modem, you can contact your Internet service provider. You want to chat with your boyfriend, but you can't. Know how to say it. Ask God for help
Start by saying hello.
Then ask the other person what they are doing or where they are going, and then say that they happen to be going the same way, so we can chat on the way. Don’t know how to set up an equation for a quadratic function? Please help me
Solution: If you know the coordinates of three points on the parabola, you can set its analytical formula as y=ax?+bx+c (general formula), and then substitute it into a and b respectively. , c;
If the two intersection points of the parabola and the x-axis are known (x1,0), (x2,0). Then you can set its analytical formula as y=a(x-x1)(x-x2) (two radical formulas), and then substitute the coordinates of another point to find a;
If the vertex base of the parabola is known (h, w), then the analytical formula can be set as y=a(x-h)?+w (vertex formula), and then substitute the coordinates of another point to find a;
If the parabola is known For two symmetric points (x1, y) (x2, y), the analytical formula can be set as y=a(x-x1)(x-x2)+y (symmetric formula), and then the coordinates of the other point Substitute to find a.