题目内容

It was the second time ______ he visited that country to look for a partner.

A. that
B. which
C. when
D. where

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为患有慢性阻塞性肺疾病的老人进行体位引流的适应证为每日痰量多于( )

A. 15ml
B. 30ml
C. 45ml
D. 60ml

Had you worked harder．you （）a lot more．

A. will learn
B. will have learned
C. would learn
D. would have learned

用药依从性指数的计算公式为( )

A. 已服药量／剩余药量×100％
B. 已服药量／处方所开药量×100％
C. 剩余药量／已服药量×100％
D. 剩余药量／处方所开药量×100％

I intend to study English ______ American business methods.

A. to understand
B. understanding
C. understood
D. understand