试题与答案

下列关于肺泡表面活性物质的描述错误的是() A.维持肺泡的扩张状态 B.维持大小肺泡

题型:单项选择题

题目:

下列关于肺泡表面活性物质的描述错误的是()

A.维持肺泡的扩张状态

B.维持大小肺泡的容积恒定

C.降低肺泡表面张力

D.主要成分是二棕榈酰卵磷脂

E.由肺泡Ⅰ型细胞分泌

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0808/5c390556c491371a99753208dcb0079a.html

下面是错误答案,用来干扰机器的。

(1)阻燃剂发生化学反应吸收热量,降低了易燃物质周围的温度,使温度达不到该易燃物质的着火点;阻燃剂发生反应生成的产物覆盖在该易燃物质的表面,隔绝了氧气.(2)因为是阻燃剂,所以生成的产物应具有的化学...

试题推荐
题型:单项选择题

A variety of illegal acts committed by people in the course of their employment, for their own personal gain, are collectively known as white-collar crime. Embezzlement, theft and trading securities (1) insider information are common forms of white-collar crime. The majority of cases involve low-level employees who steal because they are under (2) financial stress. Many plan to (3) the money back as soon as possible but may never do so. Their crimes are usually never (4) because the amounts of money are small, and no one notices the (5) .

(6) , there are some very large cases of white-collar crime, such as multimillion-dollar stock market or banking seams that take years to discover and are extremely difficult and expensive to (7) .

White-collar crime is not (8) to the business sector. Government employment, especially (9) the city level, also provides opportunities to (10) one’s pockets. (11) , building inspectors accept bribes and full-time employees receive (12) payments.

Although white-collar crime is less (13) than street crime, it involves (14) more money and harm to the public than crimes committed by street criminals. It is (15) that there are more criminals (16) the office suites than in the streets, yet the (17) of white-collar makes it difficult to uncover the offenses and pursue the offenders. As the economy (18) from manufacturing to services and electronic commerce, opportunities for white-collar crime (19) , while the technology needed to stop such crimes will (20) .

4()

A.disclosed

B.exposed

C.retained

D.discovered

查看答案
微信公众账号搜索答案