当被测压力p≤pmin时,电接点压力表的()。如果在电路上接入继电器也可以实现对压力

题型:单项选择题

问题:

当被测压力p≤pmin时,电接点压力表的()。如果在电路上接入继电器也可以实现对压力的控制。

A.低压报警器工作

B.高压报警器工作

C.上下限报警器均不工作

D.上下限报警器均工作

考点:输油工考试输油工初级输油工初级题库
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根据反垄断法律制度的规定,下列各项中,属于滥用市场支配地位行为的是()。

A.划分市场

B.联合抵制

C.固定价格

D.掠夺性定价

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150 Years of Cool

Look in the bedrooms of young people around the world. You will probably find a pair of blue jeans in each room. Jeans are very popular all over the world.

Jeans give you the feeling of comfort, youth and energy. They have long been liked by every person.

Levi Strauss is an American company. It first made blue jeans. The company was founded in 1853 by 24-year-old Levi Strauss. Twenty years later, he made the first blue jeans in the world. The jeans were used as working trousers for the cowboys of the American West. During the Second World War, American soldiers brought blue jeans to Europe and Asia. People there began to wear jeans. Little by little, they become cool.

People from different countries like different styles of jeans. Americans like to wear simple and single-colored jeans, but many Chinese like to wear jeans with lots of different colors.

Jeans now can be seen everywhere: However, in many places, it’s not always good to wear jeans. No matter how good they may look, or what color they are, it’s often not right to wear jeans in formal places. But, when you are out, relaxing and having fun, jeans are the best choice.

小题1:The story is talking about_____________.

A.Levi Strauss

B.young people

C.cool

D.jeans小题2:Levi Strauss made the first blue jeans_____________.

A.when he was 44

B.when he was 24

C.in 1853

D.in 1924小题3:___________ wore jeans after they were first made.

A.American soldiers

B.American cowboys

C.Levi Strauss

D.The people in Europe小题4:Jeans can be cool for nearly 150 years because _____________.

A.they have different styles

B.they have different colors

C.they make us feel youth, comfort and energy

D.they are working trousers.小题5:When you _____________, you’d better not wear a pair of jeans.

A.go to an important meeting

B.go on a trip

C.have a party

D.are having fun

题型:单项选择题

在教学方法上,文艺复兴时期人文主义教育反对()主义的强迫注入。

题型:单项选择题

多层建筑层高不同时,对土建工程造价的影响通常为层高每增加10cm,增加造价大约在()

A.1.3%~1.5% 

B.2.3%~2.5% 

C.3.3%~3.5% 

D.4.3%~4.5%

题型:单项选择题

机车牵引重量为机车自重的()倍之间。

A.1-3

B.3-5

C.5-7

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