题海让大学四年没有难题
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题目详情

单选题 What's the latest achievement of scientists

A. They have altered genes in sheep and inserted new and better ones

B. They have cloned a sheep

C. They have put the cloning technology into practice

D. They have completed the theoretical work of altering genes

英语视听说(1)课程封面

学科:英语视听说(1)

时间:2024-12-31 08:20:08

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