题目内容

The patients were not required to ____surgery.

A. undergo
B. be subjected to
C. be subject to

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The____of toxic waste can be quite dangerous.

A. storage
B. availability
C. disposal

The____for conducting this research underwater are describedbelow.

A. agenda
B. motivations
C. reasons

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

A. substitution
B. replacement
C. substitute

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

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