题目内容
2. Scientists can take DNA ______ one kind animal and put it ______ another kind of animal.
3. If you had a sister or brother _______ to you, how could your mother tell you apart?
4. What ________ people all over the world went to the moon?
5. Have you ever see a cow ________ horse's face?
A. 阅读下面短文,用适当的词填空,每空一词。(1×5=5分)
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A. 阅读下列短文,用适当的词填空。(1×5=5分)
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