You and Xiaoli are good friends. Xiaoli suspects Xiaomei stole his pen and wants you to search in Xiaomei's desk hole to see if there is one.

The material in the topic tells us that we should have correct principles and positions when dealing with people. Xiaoli's practice is obviously wrong, because she doesn't have a clear and correct way to make friends and doesn't adhere to the principle of making friends. This kind of friendship is not a real friendship, and it will also have adverse effects. Therefore, statement B fits the meaning of the topic. Obviously, AD is wrong and should be excluded. Although the C statement also emphasizes that it is wrong, it does not explicitly harm the healthy development of friendship, so it should be excluded.