由于经济学家所处的()、()和()的不同,于是就产生了一个问题的多种答案。

题型:填空题

问题:

由于经济学家所处的()、()和()的不同,于是就产生了一个问题的多种答案。

考点:经济学经济学方法论经济学方法论题库
题型:填空题

一位同学要用已调平的托盘天平称量2.5g药品,在称量中他发现天平指针向左偏移,这时,他应该(  )

A.减少药品

B.添加砝码

C.移动游码

D.调节平衡螺母

题型:填空题

患者,男,40岁,渔民,居于血吸虫流行区,常有饮生水不良习惯,持续高热3周,体温在38.3~39.4℃之间,食欲减退,伴腹胀,有黏液性稀便,每日2~3次,查体:T39.2℃,BP128/87mmHg,P125次/min,肝肋下2cm,脾1cm,化验:WBC3×10/L,中性55%,淋巴细胞45%,嗜酸性粒细胞计数为零。

经手术及积极抗感染等对症处理后体温逐渐下降,此时仍有可能出现肠道严重并发症是因为()

A.食欲开始好转,饮食活动未予适当限制

B.抗生素停用过早,细菌再度繁殖

C.肠道病变溃疡尚未完全愈合

D.久病体弱,抗体形成不足

E.可能与用药有关

题型:填空题

(8分)如图甲所示,重为900N的货物,放在水平地面上,与地面的接触面积为0.5m2

(1)货物对水平地面的压强多大?

(2)如图乙,一工人用滑轮组提升货物、10s内货物匀速上升了3m,则工人拉绳子的速度为多大?若动滑轮重G0=225N(不计绳重和摩擦),则滑轮组的机械效率多大?

题型:填空题

完形填空(共20小题,每小题1.5分,满分30分)

阅读下面短文,从短文后所给各题的四处选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

A cat which became famous in Britain for riding on the buses around the southern English city of Plymouth has died after being killed by a car.

Casper, a 12 -year-old black and white cat,   26   leave his house, trotted (慢跑) across the street to the bus stop, queued with bus passengers and'waited for his 27 .He then hopped(跳跃) on the number3 bus to find his  28   seat to curl up on before hopping off at his 29 .The cat was so clever that he knew  30   stop to get off and drivers made sure that he wouldn' t get off at some random(随意的)   31 .Also, the cat seemed to know where to get back  32 , and then he trotted off home.Many local people also knew Casper, who loved everyone and also enjoyed the 33 ourneys, It seemed that 12 -year-old Casper had discovered a very efficient way to 34   the English city of  Plymouth in his golden years.

However, one day ,   35 a motorist hit him and did not stop.Casper was then, in fact, crossing the street to lcatch his usual No.3 bus   36   he was struck by the car.Our friend, Caspar ___37 his injuries.On hearing the news of his death, many people were 38  . A company spokesman said in a statement that Casper _39_ many people' s lives and clearly had a very  40 life traveling around Plymouth.He also suspected that Casper was telling all the other cats in the heaven a bout the many  41_he had experienced. 

Casper' s owner, 55 -year - old Susan Finden, said he had always been a free spirit and was named   42   the cartoon character Casper the Friendly Ghost, because of his habit of 43 off.Finden .posted a sign at Casper' s bus stop to let people know, that they' d no longer be enjoying the company of the cat of whom they'd grown so  44 .

Casper was a special cat and he had a wonderful life.A  45  of the cat will continue to be used on one of the company' s buses. He will be missed for ever.

26.A.used to              B.liked to              C.hated to          D.had to

27.A.time                B.turn                C.place      D.order

28.A.best               B.favpritest             C. most          D.favorite

29.A.destination          B.determination       C.decision              D.description

30.A.where              B.at which             C.what          D.in which

31.A.station            B.stop   C.spot   D.scene

32.A.up                  B.down                C.off      D.on     

33.A.bus                 B.car    C.rail           D.air

34.A.get across           B.get through         C.get down           D.get around

35.A.sadly               B.luckily          C.happily        D.strangely

36.A.while               B.as                 C.when            D.then

37.A.died off               B.died from            C.died down         D.died away

38.A.shocked              B.interested           C.surprised         D.excited

39.A.changed             B.touched            C.turned        D.challenged

40.A.discouraging         B.discouraged         C.excited         D.exciting

41.A.adventures          B.accidents           C.friends        D.incidents

42.A.by                  B.from                C.through             D.after

43.A.wondering            B.wandering          C.cutting             D.going

44.A.familiar             B.similar              C.fond           D.popular

45.A.picture              B.signal               C.movie        D.card

题型:填空题

某承包人参与一项工程的投标,在其投标文件中。基础工程的工期为4个月,报价1200万元;主体结构工程的工期为12个月,报价3960万元。该承包人中标并与发包人签订了施工合同。合同中规定,无工程预付款,每月工程款均于下月末支付,提前竣工奖为30万元/月,在最后1个月结算时支付。

签订施工合同后,该承包人拟定了以下两种加快施工进度的措施:

(1)开工前夕,采取一次性技术措施,可使基础工程的工期缩短1个月,需技术措施费用60万元;

(2)主体结构工程施工的前6个月.每月采取经常性技术措施,可使主体结构工程的工期缩短1个月,每月末需技术措施费用8万元。

假定贷款月利率为1%,各分部工程每月完成的工作量相同且能按合同规定收到工程款,现值系数见表1。

[问题]

若按原合同工期施工,该承包人基础工程款和主体结构工程款的现值分别为多少?

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