to nuclear radiation, even for a short time, may produce variants of genes in human body.

发布时间:2020-08-16 09:21:17

     to nuclear radiation, even for a short time, may produce variants of genes in human body.
A. Exposed
B. Being exposed
C. Having exposed
D. After being exposed

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A. Exposed
(答案→)B. Being exposed
C. Having exposed
D. After being exposed
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