题目：
用手触摸检查电动机轴承温度，当温度超过（）时应及时汇报检修单位。
A、50摄氏度
B、65摄氏度
C、75摄氏度
答案：
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参考答案：对
用手触摸检查电动机轴承温度，当温度超过（）时应及时汇报检修单位。A、50摄氏度 B、6
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