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【多选题】
下列说法正确的是()。
A.
设备如有故障,排除后,方可接通电源。
B.
启动或关闭电器设备时,必须将开关扣严或拉妥。
C.
电器设备发生过热现象或有糊焦味时,应立即切断电源。
D.
注意保持电线和电器设备的干燥,防止线路和设备受潮漏电。
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【单选题】From 2004 to 2007, the growth rates of M1 and M2
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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