【单选题】
下列属于职业危害中物理危害的是___。
A. 电离辐射
B. 细菌
C. 有机粉尘
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A
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【单选题】
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Q3: How many Black Friday shoppers were reported to go to the shops at midnight this year?___
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【单选题】
Q2: What can we learn about Christopher?___
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【单选题】
Q3: What does the woman think about Christopher taking the trip to Alaska?___
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Q2: According to Rubin, what can small companies do to thank holiday workers?___
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【单选题】
Q3: What can small business owners do to help holiday workers get into the holiday spirit?___
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【单选题】
Q4: Who are supposed to benefit most from this passage?___
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