26．(1)① ② (2) (3) ——青夏教育精英家教网—

26．(8分)

(1)①____________________②____________________

(2) _______________________________

(3)__________　____________________

(4)_________

(5)①______________________________ ②_______________________________

25．(10分)

(1) __________________________　__________________　______________

(2)_______________　______________　_____________　_________________．

分)

(1)

(2)_______V

(3)____________Ω

(4)______________________________________________________________________

(5)______________________________________________________________________

24．（6

22．(2分)

21．(2分)

20. _______________　____________　____________

19．(1)___________ _____________

(2)___________ _____________V

(3)______________KW?h _______________

18．________　________　__________

17．__________　_________　_____________　_________

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