题目内容

If my car _____ more reliable, I would have driven to Lhasa instead of flying last summer.

A. was
B. had been
C. should be
D. would be

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If we ____ adequate preparations, the conference wouldn't have been so successful.

A. haven't made
B. wouldn't make
C. didn't make
D. hadn't made

交叉钢筋的焊接应用()方法。

A. 闪光对焊
B. 电弧焊
C. 电渣压力焊
D. 电阻点焊

电渣压力焊工艺工程为：电弧引燃过程、_ _、__ _、加压焊接过程。

钢筋的连接方法有绑扎连接、_和_等三种方法。