题目内容

城市生态管理的原则有哪些?

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存储器的分类是怎样的?各有哪些特点?

Frapping lines are fitted to lifeboat davits to().

A. reduce the swinging of the lifeboat as it is being lowered from the embarkation level
B. secure the lifeboat in the davits when in the stowed position
C. hold the lifeboat to the ship's side until the tricing lines are passed
D. be used as a safety line in an emergency

白云石的主要成分是碳酸钙和(),理论上含CaO0.4%,MgO21.7%,CO247.9%。

A. 二氧化硅
B. 碳酸镁
C. 氧化镁

在同一个信用社工作的主任、副主任不得同时到另外的同一信用社任职。

A. 正确
B. 错误

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