Is marketing QQ easy to use? The company is engaged in tourism. Does it work?

I use marketing QQ at home, which is not good. QQ has only one window. If multiple users are connected at the same time, it will make it easy for you to find out who is who, and only one customer can be connected at a time. Anyway, it just doesn't work, it can't be found, and it sucks! ! ! ! ! ! ! ! There are all kinds of good things when they are sold. Let me know if you have any questions. This is us! ! ! There is another reason that won't work! ! ! Damn it! ! ! 1