题目

完形填空 Xian Xinghai was a very famous musician in China.He wrote one of the greatest pieces of music of the 20th century. In his shortlife he wrote1300songs and an opera. Xian was born in Macao, China in 1905. Becausehis father died before he was born, Xian moved from place2placewith his mother. He began learning to play the3whenhe was 13 years old. In the beginning, his violin was4cheapand badly made that he5not play it well. His friends laughed athim. Xian did not stop6and soon showed his talent. In 1934, hewas one of the first Chinese students7studied in a special musicschool in Paris两根电阻丝的电阻为R1的R2,且R1>R2,接在一电压不变的电源上,用来加热一壶水.欲使水的温度升高得快,应采取的办法是(  )A.先把两根电阻丝串联后接到电源两端B.先把两根电阻丝并联后接到电源两端C.单独使用电阻较小的电阻丝R2接在电源两端D.单独使用电阻较大的电阻丝R1接在电源两端
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