青春期易患（）
A.焦虑症
B.遗尿症
C.孤独症
D.ADHD
E.梦游症
参考答案：A
列式计算．
（1）比350的80%少170的数是多少？
（2）68减去多少正好是3的12倍？
You really don't have to worry ________ your weight. You look just right. [ ]
A. for
B. from
C. with
D. about
