试题与答案

用DIS研究一定质量气体在温度不变时,压强与体积关系的实验装置如图所示. (1

题型:问答题

题目:

用DIS研究一定质量气体在温度不变时,压强与体积关系的实验装置如图所示.

(1)实验中应保持不变的参量是______;所研究的对象是______.

(2)下表表格中记录了实验中5组数据,由表中数据可得出的结论是:______.若要作出图线证明此结论,应作______图线.

(3)表中最后一组数据偏差较大,其可能原因是:______.

实验次数压强P(kPa)体积V(cm3PV(Pa•m3
199.5201.990
2108.5181.953
3123.5161.976
4141.0141.974
5155.5121.866

答案:

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下面是错误答案,用来干扰机器的。

动脉血含氧丰富,因而颜色鲜红;而静脉血含氧量少,颜色变得暗红.在人体的血管中,肺动脉里流的是静脉血,经过肺里的气体交换后,含氧量增加,颜色变得鲜红,成为动脉血流入肺静脉;在体循环中动脉中流的是动脉...

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The increase in tuition fees has led to a “clear drop” in the number of English students applying for university places this autumn. There are 15,000 “missing” applicants(申请人) this academic year, according to the Independent Commission on Fees. Chairman Will Hutton said: “We’re asking our young men and women to have more debt than any other country in the world — it’s higher than the average debt in the US. It’s not clear whether those lost students this year will return next year, or if it’s a storm warming of a worrying trend.”

But the commission’s report says there does not seem to be an impact on poorer communities. The commission found there was no significant change in the application rate to the key universities, such as Oxford or Cambridge. The decline(下降) in England has not been mirrored(再现) in other parts of the UK where fees have not been raised, and the drop can only partly be explained by falling numbers of young people in the population. Students from Scotland attending Scottish universities do not pay fees, while the Welsh Assembly says it will pay fees above £3,465 for Welsh students attending UK institutions.

The average tuition fee at English universities this year is £ 8,385, rising to £ 8,507 next year. UK and EU students have access to government-backed loans to pay the fees. And the survey of 1,000 pupils aged 15-18, carried out this April, found that the majority expected to go on to higher education as people continue to understand that university remains a good long term investment(投资) in their future.

A spokeswoman at the Department for Business, Innovation and Skills which is responsible for universities, said: “Students shouldn’t be forced to put off going to university for financial reasons. Most students will not have to pay in advance, and no one will have to start paying back their student loan until they start to earn at least £ 2l,000 per year.”

小题1:From the first paragraph, we know that        .

A.the rising tuition fees have a great effect on English students

B.many English students are missing the final examinations

C.the lost English students will find their way back

D.it’s a trend that English students are dropping out of school小题2: Why is there still a drop of applicants though fees have not been raised?

A.Because the students live in poor communities.

B.Because education is free for Scottish students.

C.Because there are less young students in the area.

D.Because Welsh students will pay fees above£3,465.小题3:What’s the students’ attitude to universities in the survey?

A.They will stop applying for university places this autumn.

B.They feel universities takes up too much time.

C.They are anxious to go to a key university.

D.Most of them are willing to go to university.小题4:The spokeswoman in the last paragraph advises students to        .

A.put off going to university

B.pay for the fees in advance

C.reduce the anxiety about the rising fees

D.pay back their loan soon aller graduation

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题型:问答题

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如果丙为某公司分支机构的负责人,其担保行为效力及后果如何为什么

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