采用混凝土砌块砌筑拱形管渠或管渠的弯道时，宜采用( )。A.楔形或梯形砌块 B.楔形或扇形砌块 C.楔形或方形砌块 D.条形或扇形砌块

作者: rantiku 人气: - 评论: 0

问题采用混凝土砌块砌筑拱形管渠或管渠的弯道时，宜采用( )。

选项 A.楔形或梯形砌块 B.楔形或扇形砌块 C.楔形或方形砌块 D.条形或扇形砌块

答案 B

解析采用混凝土砌块砌筑拱形管渠或管渠的弯道时，宜采用楔形或扇形砌块。

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