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【判断题】
拿来主义 用 “鱼翅”,比喻文化遗产中的“精华”部分; 用 “鸦片”,; 比喻文化遗产中有认识作用的旧形式 用 “烟枪和”, 比喻 文化遗产中的糟粕,但也有些有益的成分 用 “一群姨太太”,比喻文化遗产中的糟粕。A.
正确
B.
错误
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【简答题】In Para. 4, what does the man mean by saying "I had to bear my trouble"? 52. What can be inferred from the last sentence of the passage? PASSAGE TWO 53. Why does the UN use the olive branch in its sym...
【单选题】In para 5, the author says that most cohabitation breaks up within two years. In his opinion, why does not cohabitation ordinary last very long?
A.
Because cohabiting women are too dedicated to their pursuit of career.
B.
Because cohabiting men spend too much time on their pursuit of leisure.
C.
Becuase cohabiting couples have changing expectations about each other.
D.
Because cohabiting couples are under social pressure to end cohabitation.
【简答题】在图所示外圆磨床砂轮架横向进给机构的传动系统中，转动手轮，使砂轮架相对工件作径向移动，以便靠近或远离工件。其中齿轮1、2、3及4组成定轴轮系，丝杠5与齿轮4相固联，丝杠转动时带动与螺母固联的砂轮架移动。已知丝杠为右旋单线螺纹，螺距P=3mm，各齿轮齿数Z 1 =28，Z 2 =56，Z 3 =38，Z 4 =50。试求当手轮按图示方向转一圈时，砂轮架的移动距离L和方向。
【单选题】He held a number of __________ for his many innovations.
A.
patents
B.
discussions
C.
persons
D.
papers
【单选题】听力原文： Many of the innovations in fire fighting that we will be seeing today were developed right here in America. As you can see from these photos, one of the earliest steam powered fire engines, the ...
A.
fires
B.
American fire fighting innovations.
C.
The history of fire.
D.
The Great San Francisco Fire.
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