【多选题】【听力B】Fill out the space after the record. The answers are bellow , select the best one and fill out the spaces with only letter from A to L.(听录音完成填空,选择合适的单词,填写A-L字母;注意填写答案时,答案前后一定不要留空格或符号,系统自动阅卷,可能会检...
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applied K. determined L. frequently We now consider those RLC circuits in which DC sources are 1 into the network and produce forced 2 that do not necessarily vanish as time becomes infinite. The general solution is obtained by the same 3 that was followed in RL and RC circuits: the forced response is 4 completely; the natural response is obtained as a suitable 5 form containing the appropriate number of 6 constants; the 7 response is written as the sum of the forced and the natural responses; and the 8 conditions are then determined and 9 to the complete response to find the values of the constants. It is this last step which is quite 10 the most troublesome to students.
【判断题】全球的生态旅游方兴未艾,而推行生态旅游的主要为发达国家及原始自然资源主要分布区。
【单选题】某企业20×9年2月主营业务收入为100万元,主营业务成本为80万元,管理费用为5万元,资产减值损失为2万元,投资收益为10万元。假定不考虑其他因素,该企业当月的营业利润为( )万元。
【简答题】【听力A】Fill out the space after the record.(听录音完成填空;注意填写答案时,答案前后一定不要留空格或符号,系统自动阅卷,可能会检测有误。) When a drain-source voltage increases further, however, something rather surprising happens: the 1 current lev...
【简答题】听录音完成填空。 1 を募集します。山田太郎と申します。京都大学の 2 です。趣味は 3 です。 4 は世界一周です。 5 の人と友達になりたいです。どうぞ 6 お願いします。
【简答题】听录音完成填空 共10空 提示:注意顺序
【多选题】Fill out the spaces after the record . The answers are bellow , select the best one and fill out the spaces with only letter from A to M. (听录音完成填空,选择合适的单词,填写A-M字母;注意填写答案时,答案前后一定不要留空格或符号,系统自动阅卷,可能会检测有误...
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materials K. path L. vocum M.classify An inductor is basically a 1 of wire. The material around which the coil is formed is called the core. Coils are wound on either 2 or magnetic materials. Examples of nonmagnetic 3 are air, wood, copper, plastic, and glass. The permeabilities of these materials are the same as for a 4 . Examples of magnetic materials are iron, 5 , steel, cobalt, or alloys. These materials have permeabilities that are 6 or thousands of times greater than that of a vacuum and are 7 as ferromagnetic. A ferromagnetic core 8 a better 9 for the magnetic lines of force and thus permits a stronger magnetic 10 .