______otherwise directed by a doctor, this medicine should be taken three times

游客2025-03-18 0

问题 ______otherwise directed by a doctor, this medicine should be taken three times a day.

选项 A、Even if
B、Unless
C、Except that
D、As

答案 B

解析 otherwise，副词，意为：“另外，别的样的”，按照句意，应选unless“除非”。句意为：除非医生有别的指示，否则这药应一天吃三次。

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