2021-2022课标高考英语周报55期答案

书面表达One possible version:Dear Jack,I am happy to know that you are to spend some time in China. I recommend you stay in Beijing, the capital andcultural center of China.First of all, there are a lot of museums where precious relics of historical interest are waiting for you toexplore. Besides, the exceptional Peking Opera performances there are also what you can t miss. And the city isalso best known for its abundance of ancient buildings, which are still well preserved.I hope that you will have a good time in China.Yours sincerely,Li Hua

7.C【胴析】匝数比为500:11时,变压器副线阳的输出电压为220V,因为输电线捌耗电压,故用户获得的电压低于220V家庭川电器无法正常工作,A错识;当居民使用的川电器增多时,负载总电阻变小,由闭合电路欧妈定律知,电压表的示致变小,B错误;电压表示数的变化量与电流表示的变化量的比值的绝对偵为输电线的总电阻,为R。保持不变,C正确,D错误

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