治泄有九法出自何书（） A.《医宗必读》 B.《景岳全书》 C.《脾胃论》 D.《医

(11分)如图所示，在竖直放置的铅屏A的右表面上贴着射线(即电子)放射源P，已知射线实质为高速电子流，放射源放出粒子的速度v₀=2.0×10⁷m/s。速度的方向沿各个方向都有，电子重量不计。足够大的荧火屏M与铅屏A平行放置，相距d=2.0×10^-2m，其间有水平向左的匀强电场，电场强度大小E＝1.0×10⁵N/C。已知电子电荷量e=1.6×10^-19C,电子质量取m=9.0×10^-31kg。求

(1)电子到达荧光屏M上的动能为多少焦耳？

(2)电子从P点射出到达荧光屏的最长时间？

(3)荧光屏上的发光面积。(取)

非接触式探测器主要是根据火焰或烟气的（）进行探测的。

A．化学性质

B．温度

C．浓度

D．光学效果

患者女性，42岁。脑外伤后昏迷卧床1年，社区护士检查患者骶尾部皮肤破损处组织发黑，有脓性分泌物与臭味，面积为3cm×4cm。

该护士考虑患者目前最主要的护理问题是

A．营养失调
B．知识缺乏
C．自理能力缺陷
D．有受伤的危险
E．皮肤完整性受损

阅读理解。

     Money spent on advertising is money spent as well as any I know of. It serves directly to assist

a rapid distribution of goods at reasonable prices,thereby establishing a firm home market and so

making it possible to provide for export at competitive prices. By drawing attention to new ideas it

helps enormously to raise standards of living. By helping to increase demand it ensures an increased

need of many services: Without advertisements your daily newspaper would cost four times as much,

the price of your television license would need to be doubled,and travel by bus or tube would cost

more.

     And perhaps most important of all,advertising provides a guarantee of reasonable value in the

products and services you buy. Apart from the fact the twenty-seven Acts of Parliament govern the

terms of advertising,no regular advertiser dare promote a product that fails to live up to the promise

of his advertisements. He might fool some people for a little while through misleading advertising. He

will not do so for long,for mercifully the public has the good sense not to buy the inferior article more

than once. If you see an article consistently advertised, it is the surest proof I know that the article

does what is claimed for it, and that it represents good value.

     Advertising does more for the material benefit of the community than any other force I can think

of.

     There is one more point I feel I ought to touch on. Recently I heard a well-known television

personality declare that he was against advertising because it persuades rather than informs. He

was drawing excessively fine distinctions. Of course advertising seeks to persuade.

     If its message were confined merely to information-and that in itself would be difficult if not

impossible to achieve, for even a detail such as the choice of the colour of a shirt is subtly

persuasive-advertising would be so boring that no one would pay any attention. But perhaps that is

what the well-known television personality wants.

1.By the first sentence of the passage the author means that____.

A. he is fairly familiar with the cost of advertising

B. everybody knows well that advertising is money consuming

C. advertising costs money like everything else

D. it is worthwhile to spend money on advertising

2.In the passage,which of the following is NOT included in the advantages of advertising?

A. Securing greater fame.

B. Providing more jobs.

C. Enhancing living standards.

D. Reducing newspaper cost.

3.The author thinks that the well-known TV personality is____.

A. very precise in passing his judgment on advertising

B interested in nothing but the buyer's attention

C. correct in telling the difference between persuasion and information

D. obviously partial in his views on advertising

4.In the author's opinion,______.

A. advertising can seldom bring material benefit to man by providing information

B. advertising informs people of new ideas rather than wins them over

C. there is nothing wrong with advertising in persuading the buyer

D. the buyer is not interested in getting information from an advertisement

5.What attitude does the author hold for advertising?

A. Negative.

B. Positive.

C. Ridiculous.

D. Not stated.

（）于1957年提出了“安全第一”的口号