自由实战对提高运动员实战感、熟练新动作、使用新战术都有较大作用。
参考答案：对
— Excuse me, but I want to use your computer to type a report.
— You _____ have my computer if you don't take care of it. [ ]
A. shan't
B. might not
C. needn't
D. shouldn't
《煤矿安全质量标准化基本要求及评分方法（试行）》执行说明中，通风机自动转化试验应（）进行一次。
A.每天
B.每七天
C.每十天
D.每月
