接地装置与（）之间的电阻叫接地电阻。
参考答案：大地
总会计应建立工作日志，（）记载工作情况
A、一周
B、逐日
C、一个月
D、需要
If it ______, they'll have a sports meeting in their school.
A. isn't rain B. doesn't rain C. didn't rain D. won't rain
