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问题 单项选择题

某钢筋混凝土矩形截面梁，混凝土强度等级为采用HRB400级别钢筋则纵向受拉钢筋的最小配筋率为（）。

A.0.20%

B.0.24%

C.0.25%

D.0.26%

答案

参考答案：B

单项选择题 A型题

阵发性室上性心动过速并发变异心绞痛，宜采用（）

A.维拉帕米

B.利多卡因

C.普鲁卡因胺

D.奎尼丁

E.普萘洛尔
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单项选择题

The company should establish procedures by which（）receive relevant information on the safety management system in working language or language understood by them.

A.New personnel

B.The ship's personnel

C.Personnel transferred to new assignments

D.Visitor
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