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

问题:

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

考点:临床医学检验技术(主管技师)临床检验专业实践能力中级临床医学检验主管技师专业实践能力
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某固体混合物可能含Al、(NH4)2SO4、MgCl2、A1Cl3、FeCl2、NaCl中的一种或几

种,现对该混合物作如下实验,所得现象和有关数据如图(气体体积已换算成标准状况下体积),回答下列问题:

(1)混合物中是否存在FeCl2   ___(填“是”或“否”);

(2)混合物中是否存在(NH4)2SO4    ___(填“是”或“否”),你的判断依据是                                                                           

(3)写出反应④的离子反应式:                                                

(4)请根据计算结果判断混合物中是否含有AlCl3_     _(填“是”或“否”),你的判断依据是                                                                          

题型:单项选择题

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.

小题1:According to the passage the main attraction of a bookshop is that ________.

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 ________.

A.always greet customers pleasantly and warmly   

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

C.not say a word to the customers while they read   

D.not stand behind the bookshelf all the time小题3:The underlined word "beckoning" in the last paragraph means ________.

A.waving somebody to come up  

B.laughing at a person openly

C.shouting at somebody angrily

D.shaking one's head to show disagreement小题4:The purpose of the writer in writing the third paragraph is to ________.

A.tell us a story that happened in a bookshop   

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

C.teach us how to read in a shop without buying books

D.advise us to help other people whenever we can

题型:单项选择题

在关系模型中,关系的“元数”(arlty)是指 (21) 。有关系只和S,R ∩ S的运算等价于 (22) 。设关系R和S的属性个数分别为r和5,则(R×S)操作结果的属性个数为 (23)

A.r+s

B.r-J

C.r×s

D.max(r,5)

题型:单项选择题

一位58岁高血压无心脏病患者,打牌激动时突发言语不清、右侧头痛、左肢无力,伴呕吐一次。检查发现血压为180/120mmHg,眼球各向活动好,左侧中枢性面舌瘫,左侧肢体偏瘫及左侧偏身感觉障碍,无偏盲。

本例中脑梗死与脑出血的鉴别中,最重要的是()。

A.病史

B.血压

C.无偏盲

D.偏瘫和偏身感觉障碍

E.发病年龄

题型:单项选择题

奥美拉唑属于

A.H2受体阻断药
B.M受体阻断药
C.H+-K+-ATP酶抑制剂
D.Hl受体阻断药
E.助消化药

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