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【单选题】
以下说法正确的是( )。A.
利用手动操纵式的仿形装置，依靠操作者细心操作，劳动强度高
B.
利用弹簧弹力的仿形装置适用于模型轮廓面离中心固定点变化较大的场合
C.
利用重物重力的仿形装置在加工时，容易调节压力的大小
D.
利用液压装置的仿形装置，结构比较简单，造价低
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举一反三
【单选题】Which of the following is the best title for this text？
A.
The Middle Class on the Alert
B.
The Middle Class on the Cliff
C.
The Middle Class in Conflict
D.
The Middle Class in Ruins
【多选题】How would you rate this class on a scale of 1-10?
A.
10
B.
9
C.
8
D.
7
E.
6
F.
5
G.
4
【单选题】Will Quality Eat up the US Lead in Software? If US software companies don't pay more attention to quality, they could kiss their business good-bye. Both India and Brazil are developing a world-class s...
A.
India.
B.
The US.
C.
Brazil.
D.
Germany.
【简答题】He's left now, but productivity hasn't ______that much. A: carried on B; caught up C; picked up
【单选题】- What's up? You didn't pick up the phone just now. - I'm sorry that I dancing with music on, but it's done now.
A.
practised
B.
was practising
C.
am practising
D.
have practlised
【单选题】在两个部件之间添加配合约束的时候,哪一个部件会从先前的位置移动到满足装配关系的位置?( )
A.
都移动
B.
都不移动
C.
第一个被选择的部件
D.
第二个被选择的部件
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【简答题】He's left now, but productivity hasn't ______that much. A: carried on B; caught up C; picked up
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