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 Cloningtechnologycan         humanlifebycreatinghumano...

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 Cloningtechnologycan         humanlifebycreatinghumano...

 Cloning technology can          human life by creating human organs to replace those which fail to function.

A. adjust                       B. substitute                         C. extend                      D. transform

【回答】

C

知识点:动词

题型:选择题