用兆欧表测量绝缘电阻时,兆欧表的转速最好在()转/每分钟。
参考答案:120
《中央储备粮油轮换管理办法》对中央储备粮油储存年限(以生产时间计算)是如何规定的?
Damage()the goods was caused by heavy rain during transit.
A.of
B.for
C.on
D.to