We lost our way in that small village, otherwise we _____ more places of interest yesterday.
A. visited
B. had visited
C. would visit
D. would have vidited
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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
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。