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1) Nowadays it is wrong to _________ that Thanksgiving Day is celebrated only in America. 2) Is Spring Festival a common holiday for the ____________ of Asian countries? 3) My family makes it a rule that every member has to take part in the __________ cleaning. 4) Some universities have a special canteen for the ____________, because they have strict tradition on food. 5) ____________ the birthday cake with colorful candles has become a common custom in China now. 6) In the 1950s, college graduates were in great demand and used to have ____________ of jobs waiting for them. 7) Do you think that differences in views are caused by the different _________ thinking? 8) The Asian Games were such a ____________ event in China. People shared the happiness of every gold medal won by the Chinese athletes!
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【简答题】解释下列划线的词语: A .金 就 砺则利。 ( ) B .假舟楫者,非能水也,而 绝 江河。( ) C .声非加 疾 也,而闻者 彰 。 ( ) D .非利足也,而 致 千里。( ) E .锲而不舍,金石可 镂 。( ) F .君子博学而 日 参省乎己。( ) G . 劝 学。( ) H .木直 中 绳。( )
【简答题】5-1 各元件的电压、电流参考方向如图 1.5.3 所示。 (1) 若元件 1 吸收功率为 10W ,求 U 1 =_____V ; (2) 若元件 2 吸收功率为 -10W ,求 I 2 =_____A ; (3) 若元件 3 产生功率为 10W ,求 I 3 =_____A ; (4) 若元件 4 产生功率为 20W ,求 U 4 =_____V 。 图1.5.3 题1.5电路图
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