电动工具的绝缘电阻达不到（）MΩ时，必须进行维修处理。
A.1
B.2
C.5
D.10
参考答案：B
在办理出口货物运输手续时，订舱委托书中的托运人通常是指买方。 ()
If $ 2500 were put into an account at the end of each of the next 10 years earning 15 percent annual interest, how much would be in the account at the end of ten years（）
A. $ 27461.
B. $ 50759.
C. $41965.
