如图所示的电路中,闭合开关S后,两灯均发光,则甲是______表,乙是______表(均选填“电流”或“电压”) 答案:【答案】 电流 电压【解析】[1][2]闭合开关S后,两灯均发光,若有两条电流的路径,一条路径中电流从正极出发,经过L1,另一条经过L2和甲表,汇合后回到电源的负极,所以甲表是电流表,乙相当于断路,即是电压表。如果甲是电压表,乙是电流表,则L2被短路,不会发光。
-Is there any ________ the time that I can stay here?
-Yes, you must leave here before he comes back.
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