液压支架推溜的工作过程是怎样的?

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问题:

液压支架推溜的工作过程是怎样的?

考点:液压支架(柱)修理工液压支架工液压支架工题库
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屏幕上影像运动的基本来源有().

A.对现实生活中运动的再现

B.灯光的移动

C.观众的走动

D.摄像机的运动

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若当x=1时,代数式ax3+bx+7的值为4,则当x=﹣1时,代数式ax3+bx+7值为[ ]

A.7

B.12

C.11

D.10

题型:问答题 简答题

Do other countries’ students also have so much homework? What do they usually do in their free time? You may feel curious about them.

On April 8, a report came out on the lives of high school students in China, Japan, South Korea and the US. It surveyed around 6,200 students from the four countries last year. You will find the answers to many of your questions in this report.

Who studies hardest?

Chinese students spend the most time studying. Nearly half of Chinese students spend more than two hours on their homework every day. That’s much more than students of the US (26.4%), Japan (8.2%) and South Korea (5.2%).

Who sleeps most often in class?

Japanese students fall asleep in class most often. About 45% of them said they sometimes doze offin class. In South Korea, it’s 32%; in the US, 21%; and 5% in China.

South Korean students don’t like taking notes. About 70% said they write down what the teacher says in class, many fewer than in Japan (93%), China (90%) and the US (89%).

Who is the most distracted (分心的)?

American students are the most active in class, but also the most distracted: 64.2% said they chat with friends in class; 46.9% said they eat snacks in class; and 38.9% said they send e-mails or read unrelated books in class.

What do they do after school?

In their spare time, most Chinese students study or surf the Internet. Most American students hang out with their friends. Most Japanese students do physical exercise. Most Korean students watch TV.

小题1:The report is about ___________.

A.the countries

B.the subjects

C.the students’ lives

D.the high schools小题2:What country isn’t mentioned in the report?

A.The US

B.South Korea

C.Japan

D.India小题3:__________ of the Chinese students spend more than two hours on their homework.

A.26.4%

B.8.2%

C.5.2%

D.48.6%小题4: The phrase doze off means ___________.

A.be half asleep

B.get up

C.eat snacks

D.send emails

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作为建设项目投资决策的基础,()为建设项目决策提供技术、经济、社会方面的评价依据。

A.投资机会研究

B.初步可行性研究

C.技术、经济可行性研究

D.全面审核和评估

题型:问答题 简答题

带下色白量多,质稀如涕,淋漓不绝,是因()

A.湿热下注

B.寒湿下注

C.湿毒蕴结

D.肝经郁热

E.热伤冲任

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