题目内容

趋同适应的结果是使同种生物形成多种生态型。

A. 正确
B. 错误

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What would happen if people drop rubbish in a wrong place？

A. They would be happy.
B. They would be fined0
C. Nothing would happen.

负相互作用是有害的。

A. 正确
B. 错误

Who is that woman？

A. She is my friend.
B. She is our manager.
C. She is our boss.

【B2】

A. saying
B. asking
C. telling
D. talking