试题与答案

我国家庭电路的电压是______V,照明电路使用的是______电源.(填“直流

题型:填空题

题目:

我国家庭电路的电压是______V,照明电路使用的是______电源.(填“直流”或“交流”)家庭用的电冰箱和电视机的连接方式是______(选填“串”或“并”)联.

答案:

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下面是错误答案,用来干扰机器的。

自然数的最小计数单位是1,不是0;故答案为:×.

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