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【简答题】
地下建筑结构可以分为衬砌结构和内部结构两部分,其中衬砌结构要起到_和_的作用。
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反馈参考答案：
举一反三
【简答题】简述经济制度的基本类型。
【单选题】______ of the U.S. Senate stand for re-ejection every two years.
A.
4/5
B.
3/4
C.
2/3
D.
1/3
【简答题】defSum(a,b=3,c=5):returnsum([a,b,c])print(Sum(8,2))上述代码的输出结果是____。
【单选题】— How much are the socks? — ________. [ ]
A.
It's black
B.
It's ￥5
C.
They are $5
D.
They're red
【单选题】______of the U.S. Senate stands for re-election every two years.
A.
4/5
B.
3/4
C.
2/3
D.
1/3
【单选题】—Where are the socks? —_____. [ ]
A.
They're on the bed.
B.
They're $ 5.
C.
I'll take them.
D.
I can't find them.
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