工程上,焊接后用气体为介质进行强度试验时,试验压力一般定为设计压力的()倍。
A.1.05
B.1.1
C.1.15~1.20
D.1.25~1.5
参考答案:C
-Bill Gates was so nice that he decided to ninety percent of his money to charities.
A.give up
B.give away
C.give out
D.give off
关于团体保险以下说法错误的是()。
A.必须体检
B.保险金额有上限
C.减少了逆选择
D.对参加团体的性质有要求