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【单选题】
如图所示的塑料壳体,材料为聚甲醛,要求制件外形美观、无瑕疵,主要方法为注射,下面对该制件模具设计,正确的是()A.
根据塑件的结构形式，分型面应该选择在底平面处。
B.
该制件可以选择浇口形式为环形浇口。
C.
该制件的动模都可以选择为整体式的结构。
D.
该制件必须要在动模上开设排气槽方便排气。
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举一反三
【简答题】What did Bill Gates like to do in college?
【单选题】The report mentioned in the text holds that the scope for further growth of FDI
A.
is to be severely limited.
B.
is to be expanded.
C.
remain uncertain.
D.
diminish gradually.
【单选题】What did Bill Gates do at Harvard University?
A.
He formed the ''Programmers Group'' at Harvard University.
B.
He developed a small computer to measure traffic flow.
C.
He spent many long nights in front of the school’s computer.
D.
He discussed with his classmates about starting a new business.
【单选题】Which of the listed substances can be satisfactorily removed from diesel fuel by centrifuging?
A.
Sludge
B.
Gasoline
C.
Fuel oil
D.
Lube oil
【单选题】The author's attitude towards the report mentioned in the passage is______.
A.
approving
B.
favorable
C.
dissenting
D.
objective
【单选题】Choose the best answer to the following question. The report mentioned that some important people had attended the closing ________.
A.
ceremony
B.
target
C.
suspicion
D.
surgeon
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