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【单选题】
英国采取的政体形式是（）A.
专制君主政体
B.
二元君主政体
C.
议会君主政体
D.
贵族共和政体
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举一反三
【单选题】Most of the countries in the world hold the belief _____ Taiwan is inalienable part of the People’s Republic of China.
A.
whether
B.
which
C.
what
D.
that
【单选题】用缩放命令“scale”缩放对象时:
A.
必须指定缩放倍数 : s# C4 X$ }: j
B.
可以不指定缩放基点 - J+ ~# u. R( R" U" T) g4 j4 I
C.
必须使用参考方式
D.
可以在三维空间缩放对象
【单选题】Most of the young people hold the mistaken belief that goods produced in our own country are ______ to imported ones.
A.
inadequate
B.
inappropriate
C.
inferior
D.
interior
【简答题】为保证齿轮泵平稳运转,齿轮的重叠系数大于1,相邻两对齿与端盖之间形成封闭空间,使一部分油困在其中,会产生( )现象
【单选题】在竞争激烈的市场环境或疲软的市场行情下,我们通常谈到需激发刚性需求,以下哪些属于房地产刚性需求范畴?( )
A.
婚房需求
B.
馈赠需求
C.
投资性需求
D.
改善型需
【单选题】Government bans on the dumping of sludge anywhere in the ocean are based on the belief that the spread of sludge by ocean currents poses a danger to people. Since it is not clear that sludge dumped on...
A.
The slow-moving water near the ocean bottom mixes so slowly with water closer to the surface that sludge dumped on the ocean bottom would be decomposed by bacteria before currents could bring it to the surface.
B.
Many locations on the ocean bottom far from coasts are geologically stable, and unlikely to be disrupted by earthquakes or volcanic eruptions.
C.
Deep-sea marine plants and animals in the human food chain live at depths far above the ocean bottom.
D.
Dumping large amounts of sludge would have an unknown effect on organisms that live on the ocean bottom.
E.
The technology exists to lower sewage sludge to ocean-bottom dump sites without contaminating waters closer to the surface.
【多选题】在竞争激烈的市场环境或疲软的市场行情下，我们通常谈到需要激发刚性需求.以下哪些属于房地产刚性需求范畴？（）
A.
婚房需求
B.
拆迁需求
C.
馈赠需求
D.
投资性需求
E.
改善型需求
【简答题】外啮合齿轮泵的排量与 _______ 的平方成正比,与的 _______ 一次方成正比。因此,在齿轮节圆直径一定时,增大 _______ ,减少 _______ 可以增大泵的排量。 2 .外啮合齿轮泵位于轮齿逐渐脱开啮合的一侧是 _______ 腔,位于轮齿逐渐进入啮合的一侧是 _______ 腔。 3 .为了消除齿轮泵的困油现象,通常在两侧盖板上开 _______ ,使闭死容积由大变少时与 __...
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