题目

若x≠0,则|x|-+= .  答案：1解析:因为x≠0,所以原式=|x|-|x|+=1. 完形填空。      Jenny and Bruce are good friends. They    1    from Canada. They speak English. They can speak alittle Chinese.They    2    to play with their dolls. Jenny likes English very much. Bruce likes math. They    3    in Beijing, China now. The weather in Biejing is very good in October. They    4    to school five days a week (周). They like to play games (游戏)    5    Thursdays. They    6    go to school on Saturdaysor Sundays. They have two Chinese friends.    7    names are Li Ming and Liu Dan. They are    8    the same class. They like their school. They like China. They say,"The    9   people (人民) are very kind (友好).The food is good,   10   ." (     )1.A. come      (     )2.A. can      (     )3.A. do      (     )4.A. goes    (     )5.A. at      (     )6.A. do      (     )7.A. His      (     )8.A. to       (     )9.A. Chinese  (     )10.A. much B. is     B. are     B. are     B. go      B. in     B. don't B. Their        B. in       B. China   B. very  C. live       C. be         C. don't    C. going     C. on         C. doesn't    C. They         C. of        C. China's  C. nice     D. aren't      D. like          D. be           D. are going    D. for             D. aren't                      D. Her           D. for           D. Chinese's   D. too