[单选题]Pig can be made to grow fast because of ___________.
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2023-10-01 08:01:43
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[单选题]Pig can be made to grow fast because of ___________.

A.an antifreeze gene of Arctic fish
B.a human gene
C.a disease resistant gene
D.an antibiotic resistant gene
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国家开放大学

形成性考核

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