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【简答题】
换向机构是指在( )不变的条件下,可使( )改变的机构,常见的有三种,其中三星轮换向机构是利用( )来实现换向的。
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【单选题】My mon ____ me a new tablet as a birthday gift next week.
A.
gave
B.
will give
C.
is giving
D.
give
【简答题】(二)看懂套的零件图并完成 8-15 题。 8 、该零件的名称是 ,材料是 ,绘图比例为 。 9 、主视图采用的是 剖 剖视图,B下面的图形为 视图。 10 、上方有5:1的图为 图。 11 、尺寸 的基本尺寸为 ,基本偏差是 ,最大极限尺寸是 , 最小极限尺寸是 ,公差是 。 12 、该零件轴向的尺寸基准是 ,径向的尺寸基准是 。 13 、孔 的右端倒角为 。 14 、套∅100的外圆面的表面粗...
【简答题】阅读理解。 In a time of low academic (学术的) achievement by children in the United States, many Americans are turning to Japan, a country of high academic achievement and economic (经济上的) success, for possibl...
【单选题】阅读材料，回答题： American Dreams There is a common response to America among foreign writers:the US is a land of extremes where the best of things are just as easily found as the worst. This is a cliche(陈词滥调...
A.
A
B.
B
C.
C
D.
D
E.
E
F.
F
【单选题】It’s always difficult to live in a foreign country, ______ when you don’t speak the language.
A.
extremely
B.
especially
C.
basically
D.
naturally
【简答题】This is a time of year when we think about giving and receiving presents. Can you find a little extra to give? On this page we suggest a few organizations you might like to help. Littleton Children's ...
【单选题】My new shoes cost me 50 yuan (RMB). The price was ______ that the last pair I bought a month ago.
A.
two time more than
B.
twice as much as
C.
as twice
D.
as much as twice
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