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百级净化手术间采样测点为

发布于 2021-02-26 03:47:03

【单选题】
A 手术区5点，周边区8个点
B 手术区3点，周边区6个点
C 手术区3点，周边区4个点
D 取3点即中心1点，两端各距墙1m
E 东、西、南、北、中5点，外周4点距墙1m

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