阿摩線上測驗
74. According to the passage, what is the cause of acid rain?
(A) automobile emissions
(B) second-hand smoke from cigarettes
(C) noxious gases and chemicals in the atmosphere
(D) fuel burned for energy
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統計： A(10), B(6), C(154), D(9), E(0) #1670407
統計： A(10), B(6), C(154), D(9), E(0) #1670407
