题目内容

There was a __ rise in temperature.

A. significant
B. sensible
C. sensitive

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Mice____ a normal copy of this vital gene display quite a different behavior.

A. lacking
B. missing
C. adopting

The new medication was _____ on 312 subjects with learning difficulties.

A. experimented
B. proved
C. tested

The temperature was below twenty____centigrade, thus conforming with international ____ (ISO 232). ()

A. degree ... standards
B. grades ... levels
C. level... standards

This family has been __ __C __asplaying a role in controlling the transcription of defense genes [12, 15, 67].

A. proposed
B. recommended
C. suggested

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