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【单选题】
建筑石膏的分子式是( )。A.
CaSO4·2H2O
B.
CaSO4·1/2H2O
C.
CaSO4
D.
Ca(OH)2
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【简答题】You will hear these words in the video. Write the correct word to complete each sentence. A. destination B. helicopter C. request D. turbulence E. vegetarian 1. The place that a person is g...
【简答题】A: ________ I have a copy of the budget, please?B:Sorry, Mr Cox said I ________ give it to anyone.C: ________ you like some help?D: Yes, please. ________ you hold the door for me, please?E: This ...
【单选题】lift
A.
like... very much
B.
ask sb. to be quick
C.
wonderful
D.
The line is engaged.
E.
demand/ask for
F.
ask sb. to attend...
G.
elevator
【简答题】请从市场公式的角度解释一下“市场”概念的内涵。
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