川农《机械设计基础(专科)》17秋在线作业
时间:2017-11-15 15:03来源:未知 作者:admin 点击:
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1: 单选题(5分) 带在工作时产生弹性滑动,是由于( )。 A: 带不是绝对挠性件 B: 带与带轮间的摩擦系数偏低 C: 带的紧边与松边拉力不等 D: 带绕过带轮产生离心力 正确答案: 2: 单选题(5分) 机构具有确定运动的条件是: A: 机构自由度数必须大于机构的原动件数
29. A new shopping center on the north side will have().
A. five hundred more than shops
B. as more than five hundred shops
C. five hundred shops more than
D. more than five hundred shops
满分:2 分
30. The boys in this town like to bully ().
A. one another
B. one and other
C. each other
D. one and the other
满分:2 分
31. Mother would not let Mary and () attend the hockey game.
A. I
B. my
C. me
D. we
满分:2 分
32. He grabbed me () and pulled me onto the bus.
A. a arm
B. an arm
C. the arm
D. by the arm
满分:2 分
33. Those of us who are over fifty years old should get () blood pressure checked regularly.
A. their
B. their’s
C. our
D. ours
满分:2 分
34. “May I speak to Iris?”“This is()speaking.”
A. she
B. . hers’s
C. hers
D. her
满分:2 分
35. There is a line of trees in()side of the river.
A. every
B. each
C. per
D. none
满分:2 分
36. Baseball is the most () sport in the USA.
A. welcome
B. popular
C. wanted
D. desired
满分:2 分
37. One of the requirements for a fire is that the material () to its burning temperature.
A. be heated
B. is heated
C. would be heated
D. to head.
满分:2 分
38. Everybody in the class must give in () exercise book within the given time.
A. their
B. our
C. his
D. her
满分:2 分
39. Children should be taught how to get along with ().
A. another
B. other
C. others
D. any other
满分:2 分
40. () is the volume of chemical goods.
A. Constantly growing too
B. Too constantly growing
C. Growing constant to
D. Too growing constant
满分:2 分
41. This is one of () interesting books on your subject.
A. the most
B. the most of the
C. most
D. most of the
满分:2 分
42. They thought it desirable that an armed guard() in readiness.
A. stands
B. stand
C. stood
D. would stand
满分:2 分
43. ()received law degrees as today.
A. Never so women have
B. The women aren’t ever
C. Women who have never
D. Never have so many women
满分:2 分
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