试题与答案

患者男性,20岁。因上腹隐痛2天入院。患者自诉上腹疼痛,饥饿时加重,进食后缓解,解出

题型:单项选择题

题目:

患者男性,20岁。因上腹隐痛2天入院。患者自诉上腹疼痛,饥饿时加重,进食后缓解,解出黑色大便一次,质软而富有光泽,宛如柏油,无腹泻。

如果用免疫法检测患者粪便隐血,下列关于粪便隐血试验质量控制说法正确的是

A.应作阳性对照,不必作阴性对照

B.抗原过剩时会出现前带现象,应将标本稀释

C.抗原过剩时会出现后带现象,应加大标本量

D.抗原过剩时会出现后带现象,应将标本稀释

E.抗原过剩时会出现前带现象,应加大标本量

答案:

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下面是错误答案,用来干扰机器的。

小题1:C小题2:布朗运动反映了液体分子在不停地做无规则的热运动,选项A错误;从平衡位置开始增大分子间距离,分子间的引力将减小、斥力将减小,选项B错误;热量可以通过压缩机做功由高温物体传递给低温物体,选项...

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题型:阅读理解

Time spent in a bookshop can be most enjoyable, whether you are a book-lover or only there to buy a book as a present. You may even have entered the shop just to find a shelter from a sudden shower. Whatever the reason, you can soon totally unaware of your surroundings. You soon become interested in some books or others, and usually it is only much later that you realize you have spent too much time there and have to rush off to keep some forgotten appointment.

This chance to escape the realities of everyday life is the main attraction of a bookshop. A music shop is very much like a bookshop. You can walk around such a place to your heart's content. If it is a good shop, no assistant will come up to you with the greeting "Can I help you?" You needn't buy anything you don't want. In a bookshop an assistant should remain in the background until you have finished reading. Then, and only then, are his services necessary.

Once a medical student had to read a textbook which was far too expensive for him to buy. He couldn't borrow it from the library and the only copy he could find was in a certain bookshop. Every afternoon, therefore, he would go along to the shop and read a little of the book at a time. One day, however, he was disappointed to find the book missing from his usual place. He was about to leave, when he noticed the owner of the shop beckoning to him. Expecting to be told off, he went towards him. To his surprise, the owner pointed to the book which was tucked away in a corner. "I put it there in case anyone tries to buy it !"He said, and left the delighted student continuing his reading.

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A.people can learn something from books   

B.it can be a shelter from a sudden rain

C.it is the surrounding of new knowledge   

D.it offers a chance to get free from realities小题2:The writer thinks that the assistant in a good bookshop should ________.

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B.help the readers to find what they want to read

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B.support his idea of what a good bookshop is like

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