生产矿井主要通风机必须装有反风设施,必要时进行反风。

题型:判断题

问题:

生产矿井主要通风机必须装有反风设施,必要时进行反风。

考点:煤矿探放水工煤矿探放水工题库
题型:判断题

脊髓损伤包括以下各项,错误的是()

A.脊髓震荡

B.脊髓挫裂伤

C.脊髓压迫

D.脊髓横断

E.脊髓空洞

题型:判断题

阅读理解

     Amelia Earhart's (1897~1937) childhood was not the typical girl's.She liked nothing better than to

explore the banks of the Missouri River, where she climbed trees and hunted rats with her rifle (步枪).

She also built her own roller coaster (过山车).

     The exciting life of the American aviation (航空) pioneer is dramatized in the movie Amelia, which is

due to come out on October 23.

     After Earhart paid a pilot $1 to take her up for a short fly in his plane, aviation became her love and

career.

      As she later explained, "Never do things others can do and will do, if there are things others cannot

do or will not do."

      Earhart found herself a flying teacher and started to learn to fly.She took all sorts of jobs to pay for

the lessons and to buy a secondhand plane on her 24th birthday.

      In 1932, Earhart flew solo (单独地) across the Atlantic.She became the first woman to make the

solo crossing.She also made a flying suit for women and went on to design other clothes for women who

led active lives."Now and then women should do for themselves what men have already

done-occasionally what men have not done-thereby establishing themselves as persons, and perhaps

encouraging other women toward greater independence of thought and action, " she said.

      When she was nearly 40, Earhart was ready for a final challenge-to be the first woman to fly around

the world.However, in the flight, she and her navigator (领航员) disappeared in bad weather.

Earhart will be forever remembered as a brave pioneer for both aviation and for women.

1. According to the passage, which of the following statements is true?

A. A movie about Earhart's exciting life has come out.

B. Earhart never did things others could and would do.

C. Earhart's love for aviation came after she flew a plane for a short time.

D. In Earhart's opinion, women should think and act more independently.

2. The underlined word in Paragraph 2 means "________".

A. presented  

B. adopted  

C. published  

D. created

3. From the passage we can know that________.

A. Earhart showed most interest in adventure trips to the Missouri River during her childhood

B. Earhart's ambition was to fly across the Atlantic

C. Earhart challenged herself constantly

D. Besides flying, Earhart also designed planes and clothes

4. You can probably find this article in________.

A. a booklet  

B. a newspaper

C. a guidebook  

D. an advertisement

题型:判断题

限价指令竞价交易时,撮合成交价等于买入价(bp)、卖出价(sp)和前一成交价(cp)三者中居中的一个价格。即:当bp≥sp≥cp,则:最新成交价=sp;当bp≥cp≥sp,最新成交价=cp,当cp≥bp≥sp,最新成交价=bp。( )

题型:判断题

《经纪人管理办法》把经纪人管理作为监督管理生产要素市场的途径,这主要是因为()。

A.经纪人是生产要素市场上特有的市场主体

B.经纪人的行为是生产要素市场秩序的最大威胁

C.经纪人的活动是商品市场和生产要素市场的普遍现象

D.经纪人在市场交易中居于中介的特殊地位,又主要在生产要素市场上活动

题型:判断题

简述发动机制动作用控制方式。

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