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【单选题】
某大体积混凝土采用全面分层法连续浇筑时，混凝土初凝时间为180min，运输时间为30min。已知上午8时开始浇筑第一层混凝土，那么最晚可以在上午( )开始浇筑第二层混凝土。A.
9时
B.
9时30分
C.
10时
D.
11时
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皮皮学刷刷变学霸
举一反三
【单选题】Now 'Sandwich' means ______ .
A.
two pieces of bread with meat between them
B.
two pieces of bread between some meat
C.
two pieces of bread among some meat
【简答题】马来西亚的首都是:
【单选题】Would you like to pass me __? [ ]
A.
two cakes
B.
two piece of cake
C.
two pieces of cakes
D.
two pieces of cake
【简答题】Would you please pass me___? Atwo paper B two papers Ctwo pieces of paper D two pieces of papers
【单选题】Could you give me ____________ ? [ ]
A.
two advices
B.
two pieces of advices
C.
two pieces of advice
D.
any advice
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