试题与答案

芦花鸡的羽毛(成羽)是一种黑白相间的斑纹状,但在雏鸡阶段的绒羽为黑色且头顶上有一个黄

题型:单项选择题

题目:

芦花鸡的羽毛(成羽)是一种黑白相间的斑纹状,但在雏鸡阶段的绒羽为黑色且头顶上有一个黄色斑点。控制芦花的基因在Z染色体上,芦花对非芦花是显性。养鸡场为了多养产蛋母鸡,要大量淘汰公鸡,你建议如何配种来达到这个目的()

A.芦花母鸡×非芦花公鸡

B.芦花公鸡×非芦花母鸡

C.芦花母鸡×芦花公鸡

D.非芦花母鸡×非芦花公鸡

答案:

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参考答案:1.为国家解决社会犯罪问题,制定刑事政策提供科学的理论依据;2.在我国政法实际工作和社会治安综合治理过程中具有重要的指导作用。

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The reason is that "How are you?" isn't really a question and"Fine" isn't really an answer. They are simply

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     People also don't say exactly what they are thinking when they finish talking with other people. For

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1. When a person in the United States asks "How are you?", he or she wants to hear " _______". [ ]

A. How are you?

B. Hello.

C. I don't know.

D. Fine.

2. When a person disagrees with someone, it is polite to say "_______". [ ]

A. You're wrong. I disagree.

B. I'm not sure.

C. I'm sure I disagree.

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A. You have to go now.

B. I want to hang up.

C. I have to go now.

D. I don't want to talk any more.

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A. giving an excuse

B. hurting someone's feeling

C. ill in bed

D. asking you a question

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A. Be polite.

B. Don't disagree with people.

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D. Never say exactly what you are thinking.

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