阿摩線上測驗
18. Which of the following statements is the example given to show that smog is a killer?
(A) Breathing in smog can cause bronchitis.
(B) Smog is especially harmful for old people.
(C) Four thousand people died in London in 1952.
(D) Cities check their smog levels more carefully now.
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統計： A(4), B(0), C(9), D(0), E(0) #802606
統計： A(4), B(0), C(9), D(0), E(0) #802606