常见冒顶有哪几种类型?

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问题:

常见冒顶有哪几种类型?

考点:煤矿安全生产知识竞赛煤矿采煤掘进考试煤矿采煤掘进考试题库
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装置下列部位中,不需采用专门敷设接地线接地的是( )。

A.10kV及以上钢筋混凝土构件支座内的钢筋

B.发电机机座或外壳

C.避雷器、避雷线等的接地端子

D.变压器及GIS的接地端子

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使用其他机动车号牌、行驶证的一次记3分。

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联合国救灾协调员办事处在美国市场采购原产于加拿大的冰雪救灾物资无偿援助我国,该批物资在洛杉矶装船,在日本东京中转后运抵我国,这种情况其报关单“起运国(地区)”栏目应填为( )。

A.日本
B.加拿大
C.美国
D.联合国

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良好的秩序是顺利登乘、全部撤离的重要保证。登乘顺序应是()。

A.老弱病残→妇女儿童→其他艇员→舰长最后

B.妇女儿童→老弱病残→其他艇员→舰长最后

C.老弱病残→妇女儿童→舰长→其他艇员最后

D.妇女儿童→老弱病残→舰长→其他艇员最后

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Part 3


Questions 19-25


·Read the following passage and answer questions 19-25.
·For questions 19-25, choose the correct answer A, B, C and D.
·Mark your answers on the Answer Sheet.
While still in its early stages, welfare reform has already been judged a great success in many states, at least UN is getting people off welfare, lt’s estimated that more than two million have left the roles since 1994.
In the past four years, welfare in rolls in Athens country has been cut in half. But 70 percent of the people who left in the past two years took jobs that paid less than $6 an hour. The result: The Athens country poverty rate still remains at more than 30 percent—twice the national average.
For advocates for the poor, that’s an indication that much more needs to be done.
"More people are getting jobs, but it’s not making their lives any better," says Kathy Lairn, a policy analyst at the center in budget and policy priorities in Washington.
Canter analysis of US census data nationwide found that between 1995 and 1996, a great percentage of single, fame-headed household were earning money on their own, but that average income for these households actually went down.
But for many, the fact that poor people are able to support themselves almost as well without government aid as they did with it is in itself a huge victory.
"Welfare was a poison. It was a toxin that was poisoning the family," says Rector, a welfare reform is changing the moral climate in low-income communities. It’s beginning to rebuild the work ethic, which is much more important.
Mr. Rector and others argued that once "the habit of dependency is cracked," then the country can make other policy changes aimed at improving living standards.

Why aren’t people enjoying better lives when they have jobs

A.Because their wages are low.

B.Because many families are divorced.

C.Because the cost of living is rising.

D.Because government aid is now rar

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