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问题 单项选择题

室外消火栓宜采用消火栓，地上式消火栓应有一个和两个DN65的栓口。（）

A、地上式，DN150或DN100

B、地上式，DN150

C、地下式，DN100

D、地下式，DN150或DN100

答案

参考答案：A

选择题

伯里克利时代民主政治发展到了很高的程度，对此描述不正确的是

A．除十 * * 外，各级官职向所有的公民开放

B．民众政治的主要机构有“公民大会”、“五百人会议”和“陪审法庭”

C．担任公职和参加政治活动的公民由国家发放津贴

D．贵族的政治权力消失殆尽
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单项选择题

We should let more young parents and their children can enjoy scientific early education.

A. provide more young parents and their children to enjoy early education
B. provide more young parents and their children to enjoy early education and scientific
C. provide young parents and their children enjoy more scientific early education
D. provide young parents and their children with more early education services
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