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【单选题】
用消防梯疏散人流时，要防止一拥而下，两节拉梯只能同时供（）依次而下。
A.
2～3人
B.
3～4人
C.
4～5人
D.
1～2人
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参考答案：
举一反三
【单选题】On February 4,1974, the Capital Building, the newest building ha Sao Paulo, was destroyed in a big fire. The fire was started on the 11th floor. Soon the whole floor was on fare. There were 25 floors ...
A.
Right.
B.
Wrong.
C.
Doesn’t say.
相关题目：
【单选题】On February 4,1974, the Capital Building, the newest building ha Sao Paulo, was destroyed in a big fire. The fire was started on the 11th floor. Soon the whole floor was on fare. There were 25 floors ...
A.
Right.
B.
Wrong.
C.
Doesn’t say.
参考解析：
题目纠错 0
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