阿摩線上測驗
38. What are true about Oscilla’s generators?
(A) They have many moving parts.
(B) They move along with the waves.
(C) They do not have coils of wire.
(D) The phenomenon magnetostriction is employed.
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統計： A(190), B(200), C(142), D(833), E(0) #3158011
統計： A(190), B(200), C(142), D(833), E(0) #3158011
