试题与答案

引起梗死的原因及梗死发生的重要条件是( )。A.动脉闭塞所致局部缺血,建立有效的侧

题型:单项选择题

题目:

引起梗死的原因及梗死发生的重要条件是( )。

A.动脉闭塞所致局部缺血,建立有效的侧枝循环

B.静脉闭塞所致局部缺血,建立有效的侧枝循环

C.动脉闭塞所致局部缺血,未能建立有效的侧枝循环

D.静脉闭塞所致局部缺血,未能建立有效的侧枝循环

E.以上都不是

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C

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题型:多项选择题 案例分析题

患者男性,71岁,体重64kg,因“进行性排尿困难1年,加重2周”来诊。患者1年前无明显诱因出现排尿不畅,表现为排尿延时、费力、等待,尿线变细、射程缩短、尿不尽感,伴尿频、夜尿次数增多,无排尿中断及双腰背部疼痛不适,无畏寒、高热。曾自服非那雄胺、特拉唑嗪等药物治疗,因服药不规律,上述症状反复,有进行性加重趋势。2周前出现排尿极度费力,尿线呈滴沥状,伴有尿痛、下腹部胀痛。外院给予留置导尿3日,拔除导尿管后再次出现排尿困难,下腹部胀痛,再次给予留置导尿,引流尿呈淡红色。B型超声:前列腺增生、双肾囊肿。以“前列腺增生症、尿潴留”入院。既往史:高血压病史1年,现口服硝苯地平缓释片30mg/d,血压控制平稳;2个月前因脑梗死住院治疗;有青霉素过敏史。查体:体温35.8℃,脉搏80次/分,呼吸20次/分,血压140/90mmHg(1mmHg=0.133kPa)。诊断:前列腺增生症、尿潴留、高血压病、双肾囊肿。血常规、肝功能、肾功能、血气分析、凝血功能无异常。拟在硬膜外麻醉下行经 * * 等离子前列腺汽化电切术(PK术)。

在前列腺组织和前列腺液中可达有效浓度的抗菌药物是()

A.氟喹诺酮类

B.糖肽类

C.大环内酯类

D.硝基咪唑类

E.四环素类

F.多肽类

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题型:探究题

小明在探究液体压强时,用压强计做实验,

(1)实验中是通过观察U形管液面的_________来知道液体压强的大小的。

(2)小明作图(a)所示的检查. 当用手指按压(不论轻压还是重压)橡皮膜时,发现U形管两边液柱的高度几乎不变化。出现这种情况的原因是:________________________________;

(3)据表中信息,判断小明研究的问题是

[ ]

A.液体压强与液体深度的关系

B.液体压强与液体密度的关系

C.液体压强与液体温度的关系

D.液体压强与方向的关系

(4)在此基础上,老师提出了这样的问题:有两只杯子,分别盛有清水和盐水,但没有标签,你能否用压强计将它们区别开?于是小明又做了如下实验:

压强计调节正常后,小明将金属盒先后浸入到两杯液体中,如图(b)和(c)所示。他发现图(c)中U形管两边的液柱高度差较大,于是认为图(c)杯子中盛的是盐水。

①你认为,小明的结论是_____________ (填“可靠的”或“不可靠的”);

②简要说明理由________________________________________________。

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题型:填空题

Part 3


Questions 19-25


·Read the following passage and choose the correct answer from A, B, C and D.
More and more, the operation of our businesses, government, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purpose can reap substantial rewards. Even worse, a number of people who have done this and been caught by it have managed to get away without punishment.
It is easy for computers crime to go undetected if no one checks up what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a growing recommendation from his former employers.
Of course, we have no statistics on crimes that go undetected. But it is disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been the victims of uncommon bad luck.
For example, a certain keypunch operator complained of having to stay overtime to punch extra cards. Investigating revealed that the extra cards she was being asked were for dishonest transactions. In another case, dissatisfied employees of the thief tipped off the company that has been robbed.
Unlike other lawbreakers, who must leave the country, commit suicide or go to jail, computer criminals sometimes escape punishment, demanding or not only that they not be charged but that they be given good recommendations and perhaps other benefiting, their demands have been met.
Why Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused. They hesitate at the thought of a criminal boasting in open court of how he juggled the most confidential records right under the noses of the company’s executives, accountants, and security staff. And so another staff computer criminal departs with just the recommendation he needs to continue his crime elsewhere.

In which case it’s easy for computer crimes to go undetected

A.Somebody checks up what the computer is doing.

B.No one checks up what the computer is doing.

C.No way.

D.The passage didn’t refer.

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