题目内容
______ to nuclear radiation, even for a short time, may produce variants(变异体) of genes in human bodies.
A. Being exposed B. Having exposed
C. Exposed D. After being exposed
A
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______ to nuclear radiation, even for a short time, may influence genes in human bodies.
A.Exposed | B.Being exposed | C.To expose | D.Having exposed |
____ 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 |