正火用于()零件作为预备热处理时,可改善低碳钢或低碳合金钢的切削加工性能。A、高碳结

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问题:

正火用于()零件作为预备热处理时,可改善低碳钢或低碳合金钢的切削加工性能。

A、高碳结构

B、精密结构

C、普通结构

D、强度结构

考点:石油地震勘探工石油地震勘探工高级石油地震勘探工高级题库
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盐酸与碳酸钙反应时,下列措施能使最初的反应速率明显加快的是[ ]

A.增加碳酸钙的量

B.盐酸的用量增加一倍

C.盐酸的用量减半、浓度加倍

D.温度升高

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中药种植中培育品系的研究将( )列为受试对象。

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     A study involving 8 ,500 teenagers from all social backgrounds found that most of them are ignorant

when it comes to money. The findings ,  the first in a series of reports from NatWest that has started a

five-year research project into teenagers and money, are particularly worrying as this generation of young

people is likely to be burdened with greater debts than any before.

      University tuition fees (学费) are  currently  capped  at £3 , 000 annually, but this will be reviewed

next year and the govemment is under enormous pressure to raise the ceiling.

       In the research, the teenagers were presented with the terms of four different loans but 76 percent

failed to identify the cheapest. The young people also predicted that they would be eaming on average

£31,000 by the age of 25, although the average salary for those aged 22 to 29 is just £17 ,815. The

teenagers expected to be in debt when they finished university or training, although half said that they

assumed the debts would be less than £10 , 000. Average debts for graduates are £12 ,363.

    Stephen Moir, head of community investment at the Royal Bank of Scotland Group which owns

NatWest, said, "The more exposed young people are to financial issues, and the younger they become

aware of them, the more likely they are to become responsible, forward-planning adults who manage

their finances confidently and effectively. "

      Ministers are deeply concemed about the financial pressures on teenagers and young people because

of student loans and rising housing costs. They have just introduced new lessons in how to manage

debts. Nikki Fairweather, aged 15 , from St Helens,  said that she had benefited from lessons on

personal finance, but admitted that she still had a lot to learn about money.

1. Which of the following can be found from the five-year research project? 

A. Students understand personal finances differently.

B. University tuition fees in England have been rising.

C. Teenagers tend to overestimate their future eamings.

D. The students' payback ability has become a major issue.

2. The phrase " to raise the ceiling"  in Paragraph 2 probably means"________".    

A. to raise the student loans

B. to improve the school facilities

C. to increase the upper limit of the tuition

D. to lift the school building roofs

3. According to Stephen Moir, students_________.    

A. are too young to be exposed to financial issues

B. should learn to manage their finances well

C. should maintain a positive attitude when facing loans

D. benefit a lot from lessons on personal finance

4. What can we leam from the passage?  

A. Many British teenagers do not know money matters well.

B. Teenagers in Britain are heavily burdened with debts.

C. Financial planning is a required course at college.

D. Young people should become responsible adults.

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孔口人员抽、插垫叉时,禁止手扶垫叉底面或用脚勾垫叉

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学风是指在一定环境的条件下形成和表现出来的带有一贯性的学习风格和行为样式,它包括()

A.学习态度

B.学习精神

C.学习方法

D.学习风格

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