The radiopharmaceuticals used in nuclear medicine emit gamma rays that can be detected externally by special types of cameras.

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问题 The radiopharmaceuticals used in nuclear medicine emit gamma rays that can be detected externally by special types of cameras.

选项 A、bestow
B、exhibit
C、impose
D、discharge

答案D

解析 emit“发出，放出”。bestow“赠给，授予”：exhibit“陈列，展览，呈现”；impose“强加”：discharge“放出，流出，发射”。从各选项意思可以看出，只有D项跟画线词义相接近，都含有“发出，放出”之意，故选D。

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医学博士外语

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