题目内容

He didn't go to school ______ he is ill.

A. when
B. as
C. while

查看答案

搜索结果不匹配？点我反馈

更多问题

预应力筋张拉锚固后实际预应力值的偏差不得大于或小于工程设计规定检验值的( )。

A. 20%
B. 15%
C. 10%
D. 5%

He died and ______ nothing.

A. leave
B. leaves
C. left

Today is ______ colder than yesterday.

A. much
B. more
C. many

采用控制应力法冷拉钢筋，HRB400级钢筋的控制应力为( )N/mm2。

A. 370
B. 450
C. 490
D. 580