题目内容
(请给出正确答案)
[单选题]
The respirable dust is defined by those particles≤ () μm size range
A.44
B.10
C.70
D.2.5
提问人:网友fuhuaibing
发布时间:2022-01-07
A.44
B.10
C.70
D.2.5
A.The same detection system mentioned in the previous paragraph
B.A breathalyzer attached to a car's seat belt
C.A smart car seat belt
D.An intelligent engine
A、The rate of airflow through the hood
B、The material of the hood
C、The shape of the hood
D、The location of the hood
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