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【单选题】
单极开关 混联控制电路接线图(操作区)中,需要测量灯泡是否有电压时 :A.
可以将万用表设置在交流电压档，接在单极开关1两端
B.
可以将万用表设置在交流电压档，接在单极开关2两端
C.
可以将万用表设置在交流电压档，接在单极开关3两端
D.
可以将万用表设置在交流电压档，接在灯泡两端
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下列说法是错误的是()
A.
滴定液是已知准确浓度的标准溶液，即标准溶液
B.
标定也是滴定的一种操作形式
C.
在滴定过程中，溶液中指示剂发生颜色变化的转变点称为化学计量点
D.
指示剂是一种辅助试剂
【简答题】I’m not against using big words, when it is right to do so, but I have also learned that a small word can work a small miracle―if it’s right word, in the right place, at the right time.
【简答题】用适当的介词或者副词完成句子 1 You can expect a long and healthy life if you give smoking. 2 Iwill carry my plan if you are not against it. 3 The cake is the shape of a heart. 4 He gave great importance what his fa...
【简答题】A strange thing about humans is their capacity for blind rage. Rage is presumably an emotion resulting from survival instinct, but the surprising thing about it is that we do not deploy it against oth...
【多选题】Is it a cultural difference or purely ? However, judging by the atmosphere of whatever country you live in, you may be heavily discriminated against if you went out with . N95 masks are relatively exp...
A.
discrimination
B.
a facial mask and goggles
C.
extreme circumstances
D.
quarantine themselves
E.
compromise
【简答题】You see, our government is reluctant to approve of credit. If D/A is possible, it will help ease the licensing problem. If not, would documents against payment be better? ( )
【简答题】根据保障范围的不同，人身保险合同可划分为（ ）。
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