铁路软土路基稳定性验算时,下述( )说法不正确。 A.稳定性验算宜采用圆弧法 B.

来源:www.tikuol.com 发布时间:2017-07-06 01:23
题型:多项选择题

问题:

铁路软土路基稳定性验算时,下述( )说法不正确。

A.稳定性验算宜采用圆弧法

B.当不考虑地基的固结时,抗剪强度可不计入内摩擦角

C.当地基表层只铺设加筋土工合成材料时,其强度可不计入

D.软土层较薄时,可不验算路堤沿软土层底部滑动的稳定性

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题型:选择题
如果f′(x)是二次函数,且f′(x)的图象开口向上,顶点坐标为(1,-
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C.[0,
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3
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D.[
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题型:阅读理解

Reading can provide lots of fun for children and teens during summer vacation. Children who read during the summer are better prepared for school when they return to classes in the fall. Public libraries throughout Wisconsin will host summer events to encourage children and young adults to include reading in their summer fun.

●All Star Readers

The Milwaukee Public Library will host its 2007 Summer Reading Club for kids from 3 to 18. Signing up starts on June 1 at all Milwaukee public libraries and bookmobile sites.

Children aged 6 to 12 are invited to become “All Star Readers” at the Milwaukee library when they sign up for the Summer Reading Club. Children can score a point by reading 10 books or 1,000 pages. When they reach the reading goal, they will win a bag full of prizes.

●Sparkey Spots the Ball

Children up to 5 years old can join the read-to-me club, “Sparkey Spots the Ball”. They will receive their own reading folders to record the books read to them by parents, brothers and sisters or relatives. Once they have listened to 20 books, they will win a baseball and a coupon(优惠券)for McDonald’s ice cream.

●X-treme Read

Teens between the age of 13 and 18 can join in their own reading program called “X-treme Read”. Teens can read to win movie passes, CDs and more.

The library also plans extreme bike races by C4BMX at four libraries in June and July. Check with your local library or Milwaukee Journal Sentinel for the exact dates, times, and places of the demonstrations (集会).

小题1:Students who take part in the reading club can _________.

A.take part in extreme bike races

B.get a good mark in the final exam

C.get better prepared for the new term

D.finish their homework ahead of time小题2:In order to become “All Star Readers” and win a lot of prizes, you _________.

A.should be 19 years old

B.should be at least 5years old

C.must read at least 1,000 pages or 10 books

D.should listen to 20 books.小题3:Which of the following is TRUE according to this passage?

A.Children up to 5 can not join in the read –to- me club.

B.Children can score two points by reading 10 books or 1,000 pages..

C.Teens between the age of 6 and 12can join in “X-treme Read”.

D.There are extreme bike races by C4BMX at four libraries in June and July.小题4:In which club will they win a baseball and a coupon for McDonald’s ice cream.?

A.2007 Summer Reading Club

B.Sparkey Spots the Ball

C.X-treme Read

D.All Star Readers

题型:单项选择题

王医生接诊了一位农村来的肝癌病人,经济非常困难。王医生就将该病人介绍到一个收费廉价的小医院去,还亲自给病人做了手术。你认为该医生的行为()

A.医生见病人钱不够,将病人介绍到别的医院去治,还亲自去做手术,说明一切从病人出发,应该表扬

B.医生见病人钱不够,将病人介绍到别的医院去治,还亲自去做手术,扶持了小医院的发展

C.医生见病人钱不够,将病人介绍到别的医院去治,还亲自去做手术,这是倒卖病人的行为,应该严肃处理

D.医生见病人钱不够,将病人介绍到别的医院去治,还亲自去做手术,医生能增加一点收入,应该理解

E.医生见病人钱不够,将病人介绍到别的医院去治,还亲自去做手术,虽然不符合规定,但现实就是如此

题型:填空题 案例分析题

某科研所为了开发痢疾疫苗,利用鼷鼠做了一系列生理实验。实验的步骤及结果如下表:请根据上表中的结果,分析并回答下列问题:

为验证T细胞是细胞免疫的细胞,请补全实验设计思路和结果:①实验组切除鼷鼠的胸腺后,移植异体器官,移植器官易保留在小鼠体内;②对照组(),结果();③实验组(),结果()。

题型:单项选择题

根据()的不同,柴油机预供油泵可分为手动机油泵、气动机油泵和电动机油泵3种形式。

A.驱动方式

B.结构形式

C.所用材料

D.使用场合