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【多选题】
关于电流源的说法,下列正确的是( )A.
理想电流源的内阻为零
B.
实际电流源接外电路时，外电路等效电阻越大，则电流源输出电流越小
C.
实际电流源的模型为理想电流源与内阻并联的形式
D.
当外电路的等效电阻远小于电流源的内阻时，可以将实际电流源看做理想电流源
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举一反三
【简答题】Para 2: The two sectors of media- _____1______media and ______2_____media - are of different natures and purposes. The mass media are to _____3______ people with entertainment, sports, _____4_____...
【单选题】What does the last sentence in Para. 3 mean?
A.
When we compare apples with apples, there is no difference between them.
B.
When we compare apples with apples, there are many differences between them.
C.
Compared students in the Ivy League, we can not see their obvious advantage of making money.
D.
Compared students from other universities, students from the Ivy League have advantage of making money.
【简答题】Para 3: Universities, like the elite media which are _____1______, tyrannical and_____2______ - setting, are ______3_____ and geared to rewarding _____4______and obedience. Anything off line can be d...
【简答题】有一个农民带一只狐狸、一只小羊和一篮菜过河。假设农夫每次只能带一样东西过河,考虑安全,无农夫看管时,狐狸和小羊不能在一起,小羊和菜篮不能在一起。试设计求解该问题的状态空间,并画出状态空间图。
【简答题】实现理想的重要条件是
【单选题】Question 3.In the passage, the word “suspension” (Line 4, Para.1) probably refers to _______. ----- Passage 1 ----- (Para. 1)The president of the University of Toulon and two top assistants were suspe...
A.
the punishment to the president’s and vice-presidents’ unlawful activities
B.
the educational system of French universities
C.
the tradition of French universities
D.
the accusation of the unlawful activities
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【简答题】有一个农民带一只狐狸、一只小羊和一篮菜过河。假设农夫每次只能带一样东西过河,考虑安全,无农夫看管时,狐狸和小羊不能在一起,小羊和菜篮不能在一起。试设计求解该问题的状态空间,并画出状态空间图。
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