桑螵蛸散与天王补心丹两方组成中均含有的药物是( ) A．菖蒲远志 B．龙骨人参 C．

5秒内通过某导体横截面的电荷量为2库，电流做功12焦，通过导体的电流为______安，导体两端的电压为______伏．当该导体连接在电压为3伏的电源两端时，5秒内通过它某个横截面的电荷量为______库．

Most Americans enjoy moving from place to place. For example, they often drive their cars 120 to 160 kilometers away just to have dinner with a friend or even fly to Europe just for watching a football match. In some states only one person in five lives in a place for more than five years. One may be born in one city, and go to school in another. He may finish his middle school in two or three cities, and then attend a college far across the country. When he has entered business, he may possibly move from job to job. Moving from one job to another, which is called “job-hopping”, is a very common practice in the United States. Job-hopping is good to workers, because every change of a job gives them a chance to move up to a higher position and to get better pay. And job-hopping also gives bosses the chance to get new ideas and skills that different people bring to their companies and factories.

1. According to this passage, Americans often travel_______.

A. in order to have dinner with their friends

B. in order to watch football matches

C. to enjoy themselves

D. in order to find a new job

2. In some places in America, ________ for more than five years.

A. most people stay in one place

B. about 20% of the people live in one place

C. the owners of houses stay in one place

D. the owners of five house stay in one place

3. In the USA, job-hopping_______.

A. has become the custom (习惯)

B. has helped young people to attend to college

C. has helped students to enter business

D. has helped worker in traveling

4. The writer thinks________.

A. job-hopping does good either to workers or to the bosses

B. job-hopping does good neither to the workers nor to the bosses

C. little of the job-hopping

D. highly of the job-hopping

披露基金信息中期报告应该在基金会计年度前6个月结束后的()日公布。

A.30

B.90

C.60

D.15

隔绝式压缩氧自救器（）转动氧气开关手轮，打开氧气瓶开关。

A.逆时针

B.顺时针

C.向前

D.向后

人工合成的丁氰橡胶由于热解时会产生（）有害废气，因此不宜热解。

A.HCl

B.HCN

C.SO₂

DCH₄