阿摩線上測驗
45. Which process(es) is (are) most likely to lead to acid rain?
1. pollutants from a copper smelter
2. the burning of coal containing sulfur
3. xcessive spraying of herbicides or insecticides
(A) 1 only
(B) 2 only
(C) 3 only
(D) 1 and 2 only
答案：登入後查看
統計： A(4), B(64), C(3), D(131), E(0) #923028
統計： A(4), B(64), C(3), D(131), E(0) #923028
