155.
Which city has the lowest levels of air pollution from traffic and industrial sources?
(A) London.
(B) Wellington.
(C) Jakarta.
(D) Taipei.
答案:登入後查看
統計: A(4), B(229), C(7), D(3), E(0) #3084414
統計: A(4), B(229), C(7), D(3), E(0) #3084414