题目内容

If you ____the doctors advice, you would have already recovered.

A. follow
B. followed
C. would follow
D. had followed

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______，I'd have told you.

A. If I would have known it
B. If I had have known it
C. Had I known it
D. should I know it

If I had had enough time,I ______ my work.

A. would finish
B. must have finish
C. would have finished
D. had finished

（）是液压系统的储能元件，它能储存液体压力能，并在需要的时候释放出来供给液压系统。

A. 油箱
B. 过滤器
C. 蓄能器
D. 压力表

()主要是用来储存油液的。

A. 油箱
B. 过滤器
C. 压力表
D. 冷却器