用万能表测量并记下表E2-2中输入量和输出量的有效值（伏特数）。

Using the multimeter, measure and record the rms values of the input as well as the output (volts) in table E2-2.

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每当父亲测量电压的时候，男孩就会自愿帮忙读出伏特数。

Every time when his father measured the voltage, the boy volunteered to help read how many volts it was.

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现在俄罗斯人和波兰人很可能会像喝伏特加一样一口气把数瓶啤酒喝光。

Russians and Poles are these days almost as likely to be found downing bottles of beer as shots of vodka.

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