试题与答案

北极熊体色为白色,这是它对环境的 ( ) A.影响 B.适应 C.改变 D.影响

题型:选择题

题目:

北极熊体色为白色,这是它对环境的                                (    )

A.影响

B.适应

C.改变

D.影响和适应

答案:

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