滚动轴承在未装配之前的自由状态下的游隙是()A.配合游隙 B.工作游隙 C.原始游隙

题型:单项选择题

问题:

滚动轴承在未装配之前的自由状态下的游隙是()

A.配合游隙

B.工作游隙

C.原始游隙

考点:金属拉伸工考试金属拉伸工考试题库
题型:单项选择题

含有6.02×1023个O原子的H2SO4的物质的量是[ ]

A.0.25mol

B.0.50mol

C.1.00mol

D.0.125mol

题型:单项选择题

甲数是4.5,乙数比甲数少0.16,乙数是(    )。

题型:单项选择题

阅读理解。

     Perhaps you do not know your school principal (校长) well. But you might be wise to take him or her

seriously. Beijing University will enroll (招收) students recommended by high school principals this year.

If the students recommended pass a round of interviews by Peking University, they will have an extra 30

extra points added to their national college entrance exam scores if they apply to the university.

     Beijing University said the reason behind the move was a desire to give students with comprehensive

(综合的) or special abilities a chance to stand out.

     However, a survey, showed 10,046 out of 14,227 people are against the measure. Some experts agree

with the criticism. Liu Daoyu, former president of Wuhan University is one strong opponent(反对者)."There

are so many high schools across the country. But only 39 schools are qualified to recommend students. Is

it fair to the rest of the schools? Besides, most of the 39 schools are located in big cities, which is unfair to

other regions,"

     The reform is also unfair to other students, some say. According to Liu, in the competitive exam, one

extra point can put a student ahead of a large numbers of other-never mind 30.

      "Principals do not know students well. How can they guarantee the recommendation will be fair?" asked

Wang Xuming, former spokesman of the Ministry of Education.

     The Ministry of Education said the move is a good experiment in college admission reforms and the public

should support it even if it is not yet mature (成熟的). It said Beijing University promised a series of

supervision (监督) measures to avoid cheating. For example, the information of schools and principals that

recommend students, and the recommended students will be put online for a week for public supervision.

1. The best title of the passage could be _____.

A. Beijing University Will Enroll More Students

B. Beijing University's Reform Causes a Debate

C. People Are Against Beijing University's Reform

D. The Government Supports Peking University's Reform

2. The following are the reasons why Liu Daoyu is against Beijing University's reform except that _____.

A. there will be a lot of cheating

B. it is unfair to the other regions

C. it is unfair to other schools

D. 30 points cause a huge gap among students

3. We can learn from the passage that _____.

A. the Ministry of Education supports the reform

B. the reform has started to work in college admissions

C. all the recommended students will be accepted

D. no more than 70% of the people are against the reform

4. If a student passes the interview by Beijing University, he or she _____.

A. can also apply to other universities

B. will be admitted into Beijing University

C. will have comprehensive and special abilities

D. needn't accept the public supervision

题型:单项选择题

具有息风止痉、平抑肝阳、祛风通络功效的药物是()

A.夏枯草

B.僵蚕

C.天麻

D.决明子

E.代赭石

题型:单项选择题

对船上平时无法拆卸的部件或部位的检查后,不能确切地决定修理内容的项目称为()程。

A.待定

B.重

C.隐蔽

D.待查

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