参与对用户重大电气事故的调查是用电检查部门的职责范围。
参考答案：对
All of us are proud of the great changes in Shanghai.
We're sure Shanghai will be even _____ tomorrow. [ ]
A. good
B. better
C. best
D. the best
一瓶1/2盎司（1盎司=29.57毫升）的消毒干燥黏合剂可以涂抹大约（）个指甲。
A.100
B.200
C.500
D.1000
