皮皮学，免费搜题
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【单选题】
工作许可手续的执行有以下几步，正确的执行顺序是()。①工作许可人到施工现场具体落实工作票上的安全措施。②工作负责人明确后，工作负责人和工作许可人在工作票上分别签名。③工作许可人会同工作负责人在现场再次检查所做的安全措施，并以手触试，证明欲检修的设备确无电压，同时向工作负责人指明带电设备的位置及工作中的注意事项。④工作许可人(值班员)认定工作票中安全措施栏内所填的内容正确无误且完善。⑤完成上述手续后，工作班方可开始工作。A.
①②③④⑤
B.
①③④②⑤
C.
④①③②⑤
D.
①④③②⑤
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举一反三
【单选题】A characteristic of the information age is that ______.
A.
the service industry is relying more and more on the female work force
B.
manufacturing industries are steadily increasing
C.
people find it harder and harder to earn a living by working in factories
D.
most of the job opportunities can now be found in the service industry
【单选题】The service industry is also called _______.
A.
subsidiary industry
B.
light industry
C.
tertiary industry
D.
secondary industry
【单选题】The service industry is also called .
A.
subsidiary industry
B.
light industry
C.
secondary industry
D.
tertiary industry
【单选题】Which of the following statements is NOT true about the service industry in the United States?
A.
Financial sector is at the heart of the American service industry.
B.
American service industry provides one third of the world labor force.
C.
American service industry is highly customized.
D.
It is not easy to innovate and upgrade the service industry.
【简答题】A characteristic of the information age is that ________. A) the service industry is relying more and more on the female work force B) manufacturing industries are steadily increasing C) people find i...
【多选题】下列有关位错的说法中,错误的是
A.
刃型位错与螺型位错的位错线运动的方向均与位错线垂直。
B.
晶体发生塑性变形会导致位错的运动、位错的增殖和交割。
C.
螺型位错的位错线与滑移方向垂直。
D.
负刃型位错的滑移面之下的原子间距变大，晶格受到拉应力。
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