试题与答案

血小板在生理性止血中不具有的作用() A.激活组织因子 B.释放ADP和TXA2,引

题型:单项选择题 A1/A2型题

题目:

血小板在生理性止血中不具有的作用()

A.激活组织因子

B.释放ADP和TXA2,引起血小板聚集

C.释放TXA促进血管收缩

D.释放PF,促进凝血

E.形成血小板血栓

答案:

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参考答案:又称专家会议法,是根据市场预测的目的和要求,向一组经过挑选的有关专家提供一定的背景资料,通过会议的形式对预测对象及其前景进行评价,在综合专家分析判断的基础上,对市场趋势作出量的推断。

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题型:阅读理解

On Thanksgiving Day, a teacher asked her class of first-graders to draw a picture of something they were thankful for. She thought that these children from poor families actually had little to be thankful for. And she found most of them drawing pictures of flowers or tables with food. The teacher was very surprised to see the picture Douglas handed in. It’s a hand, a simple hand.

But whose hand? The class were very interested in the strange picture. “I think it must be the hand of God that bring us food,” said one child, “A farmer,” said another, “Because he grows beautiful flowers.” Finally when the others were at work, the teacher went over Douglas’ desk and asked whose hand it was. “It’s your hand, Teacher,” she said quietly and shyly.

She remembered that she had often taken Douglas, a dirty lonely child, by the hand while having a class break. She often did that with the children. But it meant so much to Douglas. Perhaps this is everyone’s thanksgiving, not for the material things we get, but for the chance, in whatever small way, to give to others.

小题1:When did the story happen?

A.On Christmas Day.

B.On Teachers’ Day.

C.On Mother’s Day.

D.On Thanksgiving Day.小题2:Why did Douglas draw the picture?

A.He was good at drawing it.

B.His teacher asked him to draw it.

C.He wanted to show his thanks to the teacher.

D.He hoped to get a prize in drawing.小题3:What do you learn about Douglas from the passage?

A.He was a lonely child.

B.He was very active in class.

C.He always kept his hand clean.

D.He often answered questions loudly.小题4:According to the passage, which of the following is an opinion (意见;主张;看法), but not a fact?

A.The teacher went over Dauglas’ desk and talked to him.

B.Different people show their thanksgiving in different ways.

C.The teacher often took Douglas by the hand after class.

D.Most of the students were drawing the pictures of flowers or tables with food.

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题型:单项选择题

女性,28岁,近半年来月经量增多,出现乏力、头晕。查;血红蛋白60g/L,红细胞3.4×10 12/L,白细胞9×10 9/L,血小板189×10 9/L,外周血红细胞以小细胞为主,中央浅染区扩大。下列检查结果最为可能的是

A.血清铁降低,总铁结合力增加,未饱和铁结合力减少

B.血清铁降低,总铁结合力增加,未饱和铁结合力增加

C.血清铁降低,总铁结合力降低,未饱和铁结合力增加

D.血清铁降低,总铁结合力降低,骨髓含铁血黄素减少

E.血清铁降低,骨髓铁粒幼细胞减少,未饱和铁减少

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