It was not until he came back _____ he k_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

It was not until he came back _____ he knew the police were looking for him.[ ]

A.which

B.since

C.that

D.before

答案

答案：C

单项选择题

下述哪种情况可使用催产素（）

A.宫颈水肿

B.头盆不称

C.不协调性宫缩乏力

D.协调性宫缩乏力

E.子宫痉挛性狭窄环

判断题

焊缝余高在静载荷下对焊件受力影响最大。