母禽的卵巢一般只有左卵巢和输卵管，只有极少数的鸡、鸭有两侧卵巢和输卵管。禽类的卵巢形

秦始皇为自己修建了豪华的______和______再加上修筑长城等，繁重的徭役使大量农民脱离农业生产，社会经济遭到严重破坏。

经营者以广告的形势表明商品或服务的质量状况时，其余实际商品的对比关系应该是()。

A.差一些

B.好一些

C.相符

D.无关

阅读理解

     Do you ever hear yourself think,"It doesn't matter"? I have come to understand that I think this way.It

may be because I think I should do something,and I can also accept that it is unimportant.Sometimes I see negative things going on around me and think it doesn't matter.As I started working on changing this in

myself,I came up with something that really works for me.

     Not everything can intensely matter to us,or we will drive ourselves mad with concern and worry.

However,because procrastination(拖延)causes so many troubles in our lives,we can benefit from one

simple question.

     When I think I should do something that perhaps I don't really feel like doing,I may think it doesn't

matter right now.Say,for example,that you think that you need to have your roof repaired.Then you think I should call someone and have it fixed.There may be many reasons or excuses and mixed emotions behind

the thought.Whatever you feel,you can convince yourself or accept that it doesn't matter.Ask yourself this question,"When will it matter?"After you answer this question,you may become motivated(受鼓舞的)to

take the necessary steps.By asking and answering,this question can actually make you least resistant to

accomplish what you want.

     I think that everything matters in life；some things just matter less than other things.Saying "It doesn't

matter"or"I don't care"is a lie.If something is bothering you,it is because it matters to you.Therefore,the next time you think something doesn't matter,try the followup question.Perhaps the thing matters to you because you can see the consequence of ignoring it.Maybe by using the followup question you will see that it

"matters" to you now,and avoiding the issue is unlikely to make it matter less.

     Taking action toward what matters to you is what makes the difference in your life.You have your

reasons for saying"It doesn't matter"and asking when it will matter can help.I hope this suggestion will help you as much as it has helped me.

1. What's the purpose of this passage?

A. To ask readers an important question.

B. To analyze what is important in life.

C. To show how to ask a good question.

D. To share tips on overcoming procrastination.

2. According to the passage,once in a while the author________.

A. ignores the importance of dealing with unpleasant things

B. becomes crazy when facing difficulties

C. believes everything matters to him

D. tries to make no mistakes

3. The example mentioned in Paragraph 3 is to________.

A. stress that people should have their roof repaired timely

B. prove that the author isn't good at organizing things

C. explain how negative feelings influence people's attitude

D. remind readers to break the habit of making excuses

4. According to the passage,the followup question can________.

A. make people become more curious

B. help people take things more seriously

C. lead to people's being honest

D. offer more advice to people

5. Which of the following does the author agree with?

A. Things that matter should be done sooner rather than later.

B. Never say "It doesn't matter" when you face anything.

C. By asking when it will matter,you can always be successful.

D. Challenge yourself as much as possible in your life.

关于通气旁道不正确的是（）

A.肺泡内通气

B.远端支气管至肺泡通气（Lammbers通道）

C.上呼吸道通气

D.呼吸支气管至末支气管通气（Martin通道）

E.肺叶内通气

简述规模经济贸易学说和产品周期理论。