38. Which of the following is NOT mentioned as a power source used by microgrids?
(A) Solar panels
(B) Wind turbines
(C) Hydropower plants
(D) Energy storage systems
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統計: A(26), B(37), C(506), D(66), E(0) #3362476
統計: A(26), B(37), C(506), D(66), E(0) #3362476