填空题

The reason is still ______ why certain individuals have bad reactions to a drug or to a particular dose of a drug, while others don’t.

【参考答案】

not precisely known

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热门试题

填空题

If you are faced with a choice between two or more equally effective drugs, it is wise to choose the one with ______.

填空题

It is of great significance that patients and their doctors provide feedback to manufacturers and regulators if they are suspicious of any problem.