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H5通过____标签来解决音频播放的问题

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万用表欧姆挡的红表棒与 _________ 相连

He put ______ $ 20,000 as a deposit on the beautiful $ 20,000 villa believing that his investment would increase over time.

He put _______ $20,000 as a deposit on the beautiful $200,000 villa believing that his investment would increase over time.

有人试图把电流表接到电源两端测量电源的电流，这种想法对吗？若电流表内阻是0.5Ω，量程是1A，将电流表接到10V的电源上，电流表上将会流过多大的电流？会发生什么后果？