14. _____ but is converted into heat.
(A) The energy is not lost which is consumed in overcoming friction
(B) The energy which it is consumed in overcoming friction is not lost
(C) The energy which is consumed in overcoming friction is not lost
(D) The energy is not lost which consumed in overcoming friction
答案:登入後查看
統計: A(6), B(10), C(156), D(8), E(0) #3195796
統計: A(6), B(10), C(156), D(8), E(0) #3195796