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【单选题】
用普通螺栓来连接的凸缘联轴器，在传递扭矩时 。A.
螺栓的横截面受剪切
B.
螺栓与螺栓接触面受挤压
C.
螺栓同时受剪切与挤压
D.
螺栓受拉伸与扭转
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举一反三
【单选题】The reason why these men committed suicide is that ______.
A.
they felt they dishonored the family name
B.
they couldn't find gainful employment because of their age after losing their job
C.
they were afraid of being old
D.
Both A and B.
【单选题】Domestic oil ___ and gasoline prices are emerging as important issues in the presidential campaign.
A.
discussion
B.
study
C.
explore
D.
exploration
【简答题】(explore) Domestic oil ________ and gasoline prices are emerging as important issues in the presidential campaign.
【单选题】Why Karenin felt humiliated when getting out?
A.
He lost a large sum of money.
B.
His wife fell in love with someone else and he felt other people talked behind him.
C.
He humiliated his wife.
D.
He is a shy man.
【简答题】Why are the benefits of the New Economy not always widely felt?
【单选题】The reason _______ he felt frustrated was ______ he lost his MP4.
A.
why/that
B.
that/why
C.
why/because
D.
that / because
【单选题】The natural chemical change causing the slow destruction of something:
A.
decay
B.
mineral
C.
potent
D.
radiant
【简答题】For millions of years, the ________ of South-east Asia, South America and Africa have been the Earth's natural chemical laboratories, plant gardens, and zoos.
【单选题】以下关于窗体的描述中,错误的是(
A.
执行Unload Forml语句后,窗体Forml消失,但仍在内存中
B.
窗体的Load事件在加载窗体时发生
C.
当窗体的Enabled属性为False时通过鼠标和键盘对窗体的操作都被禁止
D.
窗体的Height、Width属性用于设置窗体的高和宽
【单选题】以下关于窗体的描述错误的是 ( )
A.
执行 Unload form1语句后，窗体Form1消失，但仍在内存中
B.
窗体的 load事件在加载窗体时发生
C.
当窗体的 Enabled属性为False时，通过鼠标和键盘对窗体的操作都被禁止
D.
窗体的 Height、Width属性用于设置窗体的高和宽
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