脑复苏脱水疗法下列哪项不正确A．应以增加排出量来完成 B．应维持血液渗透压在280-

临床检验仪器有哪些主要部件？

废除秦朝“诽谤妖言法”的皇帝是（ ）

A．汉文帝

B．汉武帝

C．秦始皇

D．汉景帝

阅读理解。

     Even plants can run a fever, especially when they're under attack by insects or disease.

But unlike humans, plants can have their temperature taken from 3,000 feet away-straight up.

A decade ago, adapting the infrared (红外线) scanning technology developed for military

purposes and other satellites, physicist Stephen Paley came up with a quick way to take the

temperature of crops to determine which ones are under stress. The goal was to let farmers

precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which

invariably includes plants that don't have pest problems.

     Even better, Paley's Remote Scanning Services Company could detect crop problems

before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an

infrared scanner measured the heat emitted by crops. The data were transformed into a

color-coded map showing where plants were running "fevers". Farmers could then spot-spray,

using 50 to 70 percent less pesticide than they otherwise would.

     The bad news is that Paley's company closed down in l984, after only three years. Farmers

resisted the new technology and long-term backers were hard to find. But with the renewed

concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get

back into operation. Agriculture experts have no doubt the technology works. "This technique

can be used on 75 percent of agricultural land in the United States", says George Oerther of

Texas A & M. Ray Jackson, who recently retired from the Department of Agriculture, thinks

remote infrared crop scanning could be adopted by the end of the decade. But only if Paley  

finds the financial backing which he failed to obtain 10 years ago.

1. Plants will emit an increased amount of heat when they are ________.

A. sprayed with pesticides        

B. facing an infrared scanner  

C. in poor physical condition      

D. exposed to excessive sun rays

2. In order to apply pesticide spraying precisely, we can use infrared scanning to       .

A. estimate the damage to the crops      

B. draw a color-coded map            

C. measure the size of the affected area    

D. locate the problem area

3. Farmers can save a considerable amount of pesticide by        .

A. resorting to spot-spraying          

B. consulting infrared scanning experts  

C. transforming poisoned rain         

D. detecting crop problems at an early date

4. The application of infrared scanning technology to agriculture met with some difficulties due to       .

A. the lack of official support      

B. its high cost              

C. the lack of financial support      

D. its failure to help increase production

5. Infrared scanning technology may be brought back into operation because of       .

A. the desire of farmers to improve the quality of their produce

B. growing concern about the excessive use of pesticides on crops

C. the forceful promotion by the Department of Agriculture

D. full support from agricultural experts

病毒或细菌感染性聋是由各种病毒或细菌感染累及听觉系统，损伤不包括（）。

A.耳蜗

B.听骨链

C.前庭

D.听神经

E.迷路

王某与李某系单位同事，王某为一般职工，李某为部门经理。某日，王某与李某所在单位被盗，李某个人被盗债券价值1万元。李某向公安机关报案后，又在单位内召集职工说明政策，要求作案者投案自首。王某怀疑是其同学张某所为，因为张某曾到单位来找过王某。王某感到李某对其产生怀疑，害怕李某将其开除，产生了一种花钱买平安的心理，便私下约见李某，声明债券并非其所偷，但可以由其支付李某1万元了结此事，并签订了还款协议，并要求李某不要让他人知道，也不要再追究。李某同意后，王某支付给李某1万元，李某也并未将此事报告公安机关。后盗窃犯张某因另案被捕，供认李某的债券也是其盗取。公安机关知道王某与李某之间私下了结此事后，即对王某进行审问，排除了王某参与犯罪的嫌疑。王某遂要求李某返还所得款项。李某认为所得款项合法，不同意返还，王某诉至法院。问：

王某与李某之间签订的还款协议是否有效为什么