题目内容

无菌区对空气洁净度要求是

A. 大于10万级
B. 10万级
C. 大于1万级
D. 1万级
E. 100级

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Mary (said to) her husband that she didn't (feel like to go) to (the movies) that night because she was (tired out) after a day's work.

A. said to
B. feel like to go
C. the movies
D. tired out

利于包衣制得缓控释制剂，其释药原理是

A. 溶出原理
B. 扩散原理
C. 溶蚀与扩散相结合原理
D. 渗透泵原理
E. 离子交换作用原理

(Never before) (he had) felt himself (so) powerfully (attracted to) the scientific ideal.

A. Never before
B. he had
C. so
D. attracted to

To make up an objective test, the teacher writes a series of questions, ______ has only one correct answer.

A. some of which
B. each of which
C. which
D. that