题目内容

What does the man mean?

A. Everyone ate his fish.
B. No one ate his fish.
C. It was almost enough for all of us.

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What did the man advise her to do?

A. Find a daycare center or hire a babysitter.
Being a full-time housewife.
C. Share the kitchen work with her husband.

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

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

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