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【单选题】
采用工程量清单招标的工程，实际完成的工程量与招标人提供的工程量清单中给定的工程量的差值在（）以内时，投标报价中单价不予调整。A.
3%
B.
5%
C.
10%
D.
15%
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举一反三
【单选题】What refers to the depth of a petroleum product in a tank ________．
A.
Innage
B.
Outage
C.
Thievage
D.
Ullage
【单选题】What does Shell plan to do?
A.
Shell plans to cooperate with PetroChina in Nanhai Petroleum Chemical project.
B.
Shell plans to cooperate with PetroChina in the north-east gas transmission project.
C.
Shell plans to cooperate with China National Offshore Oil in Nanhai Petroleum Chemical project.
D.
Shell plans to cooperate with PetroChina in the west-east gas transmission project.
【单选题】下列水溶液沸点最低的是( )。
A.
0.01mol·dm -3 NaNO 3
B.
0.01mol·dm -3 HAc
C.
0.01mol·dm -3 BaCl 2
D.
0.01mol·dm -3 C 6 H 12 O 6
【单选题】—________________ —They’re books.
A.
Are these English books?
B.
What’s this?
C.
What’re these ?
【简答题】看图写句子。 1. A: What are they doing? B: They're ____________. 2. A: What ___________? B: They're _____________. 3. A:______________________? B:_______________________. 4. A:_______________________? B:___...
【简答题】What is petroleum refining?
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