题目内容：
浇筑混凝土前清理灰尘和垃圾时尽量使用（ ）。
A．吹风器 B．吸尘器
C．密网覆盖
D．高压喷雾
参考答案：
答案解析：
单选题：浇筑混凝土前清理灰尘和垃圾时尽量使用（ ）。
- 题目分类：建设工程法规及相关知识
- 题目类型：单选题
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B．吸尘器
C．密网覆盖
D．高压喷雾
B．吸尘器
C．密网覆盖
D．高压喷雾
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