试述血小板的生理功能。

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问题:

试述血小板的生理功能。

考点:广西临床住院医师规范化培训生理学生理学题库
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两个定值电阻R1与R2的比值为3:5,把它们并联接入电路,通过它们的电流和电压之比为(  )

A.5:3,3:5

B.5:3,1:1

C.1:1,3:5

D.3:5,5:3

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阅读理解。

     Just like any relationship, best friendships depend on trust, promise, respect and interests. When any of

these elements (要素) is missing, the friendship will be hard to go on. If the trust is totally broken, you may

not be able to forgive him/her. Sometimes a friendship ends because either you or your friend gets tired of

putting the heart into it. This can happen when one of you finds a new friend or even a new hobby that takes

up much time. Or, perhaps you find the relationship is always going in an unhealthy way and you want some

distance. Other times, you simply change and want to leave each other. Sure, it seems sad at the time, but it's

completely normal. Not all friendships are meant to last forever. So, what should you do if something like this

happens to you? Read on for some friendly advice.

     Whatever the reason you're breaking up with your best friend, always remember that he / she was once

super important to you. Take the time to sit down privately and tell him / her what's going on and why. Don't

send him / her an unpleasant e-mail or just start ignoring (不理睬) him / her. In fact, maybe he / she has known

there's a problem and would be willing to have a heart-to-heart chat. If you're not sure about wanting an end

forever, you could suggest you two take a break from each other. If, after a while, you realize why you

became the best friends in the beginning, you can try getting back to your former behaviors. Whatever you

do, be honest about your feelings while having respect for his / hers. And if you both agree the BFF thing is

over, make sure not to be enemies.

1. What is NOT the usual cause of ending a friendship?

A. Getting tired of putting your heart into each other.

B. Finding a new hobby that takes up much time.

C. Realizing the relationship going in an unhealthy way.

D. Living too for away from each other.

2. The underlined letters BFF probably means ________.

A. 永远的朋友

B. 永久的隔阂

C. 终结的友谊

D. 暂时的误解

3. What can be the best title for this passage?

A. Four basic elements of friendship

B. Friendly advice on reading

C. What to do with friendship in trouble?

D. When to be friends or enemies?

4. What should you do when breaking up with your best friends?

①Remember his or her once being important to you.

②Try to have a heart-to-heart chat with him or her.

③Be honest and respectful to each other.

④Send an unpleasant e-mail and ignore him or her.

⑤Suggest not getting along with each other for a while.

A. ①②③④

B. ②③④⑤

C.①③④⑤

D. ①②③⑤

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下述应激性溃疡的名称中哪个与烧伤有关()

A.急性消化性溃疡

B.糜烂性胃炎

C.出血性胃炎

D.Curling溃疡

E.Cuslung溃疡

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指出下述组织、体液的声衰减,哪一项是错误的()。

A.不同的体液也存在着不同的声衰减

B.通常骨骼声衰减很强,往往引起声影

C.瘢痕组织声衰减也是比较强的,次于骨骼

D.含气肺的密度很低,因此不容易引起声衰减

E.肝、脾、肾、胰等实质器官声衰减也存在着一定的程度差异

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电视信心压缩的必要性是?

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