分动器的装配与调整的要求是() A.齿轮泵和齿轮应旋转平隐和无阻滞现象 B.要求齿轮

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问题:

分动器的装配与调整的要求是()

A.齿轮泵和齿轮应旋转平隐和无阻滞现象

B.要求齿轮啮合在70%以上,旋转应平稳,不紧涩,无噪声

C.隔离板应彻底清洗,特别是其上面的油管油槽,在清洗后应用压缩空气疏通和吹干

D.以上都是

考点:吊车司机考试中级吊车司机考试中级吊车司机考试题库
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You may feel curious (好奇的) about students in other countries: Do they also have so much homework? What do they do in their spare time? 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 off (打瞌睡) in 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 (无关的) 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 exercises. Most Korean students watch TV.

小题1:Who spent the most time studying according to the passage?

A.Chinese students

B.American students

C.Japanese students

D.Korean students小题2:American students fall asleep in class most often, don’t they?

A.No, they aren’t.

B.Yes, they are.

C.Yes, they do

D.No, they don’t.小题3:Who like taking notes most according to the passage?

A.Chinese students

B.American students

C.Japanese students

D.Korean students小题4:Which of the following sentences is wrong?

A.In their spare time , most Chinese students surf or study the Internet.

B.American students sometimes chat with friends in class.

C.A few Japanese students do physical exercises.

D.It surveyed around 6,200 students from the four countries last year.

题型:单项选择题

CE角正常值

A.压缩骨折
B.横骨折
C.斜骨折
D.粉碎性骨折
E.嵌插骨折

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有人说:“太平天国运动为中国的近代化减少了阻力。”这一说法的主要依据是太平天国[ ]

A.土地政策具有革命性

B.打击了清朝的封建统治及其体制

C.要求发展资本主义

D.吸收西方基督教文化

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患者面色灰白,神情恍惚,汗出身冷,四肢厥逆。应首先考虑的是()。

A.中风

B.脱证

C.痫证

D.痿证

E.脏躁

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1905年,丰泰照相馆第一次尝试拍片《定军山》的历史意义

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