题目内容

We have demonstrated the utility of this hemoglobin as a blood ____.

A. substitution
B. replacement
C. substitute

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Following your____tohave your paper re-reviewed by a different set of reviewers, we regret to inform you that this is not possible.

A. requirement
B. request
C. query

Any____ regarding this decision should be addressed to the editor-in-chief.

A. requests
B. requirements
C. queries

There was a __ rise in temperature.

A. significant
B. sensible
C. sensitive

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

A. lacking
B. missing
C. adopting