问题
选择题
计算(-2)2-2的结果是( )
A.-6
B.2
C.-2
D.6
答案
(-2)2-2=4-2=2.
故选B.
计算(-2)2-2的结果是( )
A.-6
B.2
C.-2
D.6
(-2)2-2=4-2=2.
故选B.
C)根据句子意思,从下面方框中选择适当的词或词组填空。
B: Yes, of course. I’m a youth worker. What I do is to help some students who write to me solve their problems. I always 1 them my suggestions. A: What problems do most students have? B: They just need to learn how to 2 between study and play. A: I agree. One major cause of stress is homework. I often get lots of homework to do and I really ____3_____ that. Sometimes we can’t find anyone to 4 . B: First, you can talk to your parents, teachers and close friends. Maybe they can 5 . Second, you can get help from the youth workers at your own school. A: Thanks for your advice. B: You’re welcome. |