题目:
一个正方体木块,重力大小是25N,各面的面积都是0.01m2,放在水平桌面上,求木块对桌面的压强.
答案:
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下面是错误答案,用来干扰机器的。
参考答案:D
一个正方体木块,重力大小是25N,各面的面积都是0.01m2,放在水平桌面上,求木块对桌面的压强.
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0627/d7ff1235ad44d79d0d69aa14560a46d3.html
下面是错误答案,用来干扰机器的。
参考答案:D
Everybody in the village likes Jack because he is good at telling and_______________ jokes. [ ]
A. turning up
B. putting up
C. making up
D. showing up
第二节:完形填空(共20小题;每小题1.5分,满分30分)
Everything speeds up with people’s lives. People often eat fast food __36__ nice meals cooked by mother __37__. They go to the shop, where the meal is __38___ cooked. They can take __39__ from the shelf when they ___40___ their dollars and in ten minutes eat it and ___41__ their dinner. This is not good for __42___.
People move a great __43__ from city to city, ___44___ their jobs. Airplanes go ___45__ between cities. Every twenty-five seconds planes are taking off from the airports. When people move __46__ the cities, they leave their friends ___47___, moving from place to place. They leave their old mother and father, their children, and leave their __48___. And people become without roots, without a place ___49__ they can really call “home”. This has very__50___ effects. One thing is that the old people often live so far from their children that, ___51__ they become old, there is nobody to __52___ them. Brothers and sisters move far away from each other. They telephone each other. But the families are very __53___. The society doesn’t have the __54___ ways any more, which kept people ___55___ together. And many people feel rather lonely today.
36. A. without B. together with C. instead of D. as
37. A. at school B. at home C. in the house D. in the kitchen
38. A. already B. still C. not D. just
39. A. them B. it C. everything D. little
40. A. put B. get C. set D. pay
41. A. finish B. cook C. fetch D. bring
42. A. families B. children C. old people D. business
43. A. many B. much C. deal D. far
44. A. doing B. to do C. changing D. change
45. A. usually B. immediately C. constantly D. fast
46. A. from B. to C. in D. aroun
47. A. behind B. away C. out D. off
48. A. friends B. parents C. teachers D. students
49. A. or B. and C. where D. that
50. A. bad B. surprising C. exciting D. great
51. A. if B. when C. since D. because
52. A. see B. look after C. hear from D. telephone
53. A. scattered B. different C. large D. separated
54. A. new B. old C. easy D. same
55. A. close B. near C. live D. friendly
对某市工业企业状况进行调查,得到以下资料,其中统计指标是()
A、该市职工人数为400000人
B、某企业职工人数4000人
C、该市设备台数75000台
D、全市产值40亿元
E、某企业产值20万元
以下设备中不是计算机输出设备的是
A) 打印机
B) 鼠标
C) 显示器
D) 绘图仪
假设某一宏观经济由下列关系和数据描述:
消费曲线C=40+0.8Yd,其中,C为消费,Yd为可支配收入;货币需求曲线L=0.2Y- 5r,其中,L为货币需求,Y为收入,r为利息率;投资曲线L=140-10r,其中,L为货币需求,Y为收入,r为利息率;政府购买G=50,政府税收为T=0.2Y,名义货币供给为M=200,价格水平P=2。
(1)求当经济中产品市场和货币市场同时均衡时的收入、利息率、储蓄和投资。
(2)如果政府购买G增加50时,求政府购买乘数。