问题
单项选择题
Which of the following equipment is for respiratory protection?（）
A.Safety helmets
B.Goggles and sepctacles
C.Breathing apparatus
D.Gloves
答案
参考答案：C
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Which of the following equipment is for respiratory protection?（）
A.Safety helmets
B.Goggles and sepctacles
C.Breathing apparatus
D.Gloves
参考答案：C
