在突触传递过程中,引起递质释放的关键因素是()。A.兴奋传到神经末梢 B.突触前膜发

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问题:

在突触传递过程中,引起递质释放的关键因素是()。

A.兴奋传到神经末梢

B.突触前膜发生去极化

C.Ca2+进入突触前末梢

D.前膜内轴浆粘度的高低

E.前膜内侧负电位的大小

考点:临床执业医师2002年临床执业医师第四单元真题
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吊销许可证的治安管理处罚仅限于吊销依照国家规定由公安机关颁发的许可证。 ( )

题型:单项选择题

Last July, my 12-year-old car died on California’s Santa Ana Freeway. It was an hour before sunset, and I was 25 miles from home. I couldn’t reach anyone to pick me up, so I decided to take a bus. Not knowing the routes, I figured I’d just head east.

A bus pulled up, and I asked the driver how far she was going. “Four more lights,” she said. There was another bus I could take from there. This clearly was going to be a long night.

She dropped me off at the end of her route and told me which bus to look for. After waiting 30 minutes, I began to think about a very expensive taxi ride home. Then a bus pulled up. There was no lighted number above its windshield(挡风玻璃). It was out of service. But the door opened, and I was surprised to find that it was the same driver.

“I just can’t leave you here,” she said. “This isn’t the nicest place. I’ll give you a ride home.”

“You’ll drive me home in the bus?” I asked, perplexed(困惑).

“No, I’ll take you in my car,” she said.

“It’s a long way,” I protested.

“Come on, ” she said. “I have nothing else to do.”

As we drove from the station in her car, she began telling me a story. A few days earlier, her brother had run out of gas. A good Samaritan picked him up, took him to a service station and then back to his car. “I’m just passing the favor along, ” she said.

When I offered her money as a thank-you, she wouldn’t hear of it. “That wouldn’t make it a favor, ” she said. “Just do something nice for somebody. Pass it along.”

1. Why did the writer say that he would have a long night?

A. He wondered how long he had to wait for the next bus.   B. No driver would give him a ride.

C. He didn’t know the routes.                            D. He perhaps would have to take a taxi.

2. Judging from its context, the place where the writer waited for the second bus was _______.

A. very quiet and peaceful                 B. dark without street lights

C. neither clean nor beautiful             D. a little unsafe

3. Why did the writer change his mind after waiting for 30 minutes at the end of the route?

A. No bus would come at the time.          B. A taxi ride would be more comfortable.

C. He became impatient and a bit worried.   D. He knew the driver would never return.

4. The bus driver drove the writer home later because ________.

A. she happened to go in the same direction  B. she wanted to do something good for other people

C. her brother told her to do so             D. she wanted to earn more money

5. The bus driver hoped that the writer ________

A. would do as she did                    B. would keep her in memory

C. would give the money to others         D. would do her a favor

题型:单项选择题

络纱时对纱线的辅助处理有()

A.上蜡

B.上油

C.上涂料

D.上色浆

E.上柔软剂

题型:单项选择题

道岔转换途中,车驶入该区段则该道岔()。

A.停止转换

B.继续转换

C.自动往回转换

D.不一定

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伏暑见寒热似疟,身热午后甚,入暮尤剧,天明得汗诸症稍减,但胸腹灼热不除,口渴心烦,脘痞呕恶,舌红,苔薄黄而腻,其治疗方剂是()

A.达原饮

B.雷氏宣透膜原法

C.蒿芩清胆汤

D.雷氏芳香化浊法

E.王氏连朴饮

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