相关考题
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单项选择题
在美国的商业票据市场上,大多数商业票据的发行面额都在( )。
A.10万美元以上
B．20万美元以上
C．50万美元以上
D．100万美元以上 -
多项选择题
引起水泥体积安定性不良的主要原因是熟料中含有过量的（）。
A.游离氯化钙
B.游离氧化铝
C.游离氧化镁
D.三氧化二铝
E.三氧化硫 -
单项选择题
听力原文：M: Didn't I tell you? I retired on Friday.W: Really! I didn't think you'd be retiring for another five years or so.M: Well. I'll be seventy then, you know.W: Well. I never! I thought you were still in your fifties.How old is the man now?A．In his fifties.B．In his sixties.C．Seventy.D．Seventy-five.
A.
W:
B.
M:
C.
W:
D.
How
E.In
F.
B．In
G.
C．Seventy.
D．Seventy-five.
