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【单选题】
某基础工程开挖与浇筑混凝土共两个施工过程在4个施工段组织流水施工,流水节拍值分别为4、3、2、5d与3、2、4、3d,则流水步距与流水施工工期分别为( )d。A.
5和17
B.
5和19
C.
4和16
D.
4和26
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举一反三
【单选题】According to the INCOTERMS 2010, the insurance required under a CIF contract has to cover _________.
A.
the minimum conditions.
B.
the maximum conditions.
C.
moderate conditions.
D.
any conditions at the seller's option.
【单选题】According to the INCOTERMS 2010, the insurance required under a CIF contract has to cover_______.
A.
the minimum conditions
B.
The maximum conditions
C.
moderate conditions
D.
Any conditions at seller’s option
【单选题】According to the INCOTERMS 2010, the insurance required under a CIF contract usually has to cover .
A.
the minimum conditions.
B.
the maximum conditions.
C.
moderate conditions.
D.
any conditions at the seller's option.
【简答题】减压蒸馏开始时,要先减压再加热,顺序可否颠倒,为什么 ? 减压蒸馏由哪几部分组成?
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