問題詳情

二、閱讀測驗（共 15 題，每題 2 分，共 30 分）Smog is a killer. Smog is fog mixed with toxic fumes such as car exhaust or factory smoke.These cannot escape into the upper atmosphere but are trapped by the moisture in the air. Breathingin this polluted air can cause bronchitis and other respiratory illnesses. It can even cause death, asin London in 1952 when 4000 people died in a week. Elderly people are particularly at risk fromsmog.Cities watch their smog levels more carefully now. Not only are there greater controls overfactory emissions, but people are warned of dangerous pollution levels by the media so they canchoose to remain indoors.
16. According to this passage, what is smog?
(A) Smog is caused by vehicles and factories.
(B) Smog is a combination of fog and fumes.
(C) Smog is polluted air surrounding car factories.
(D) Smog is produced by something that is burning.

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

內容推薦

內容推薦