题目内容

In 1952, the in the four-day London smog, an unhealthy atmosphere formed by mixing smoke and dirt with fog, left 4,000 people dead or dying.

A. carbon dioxide
B. carbon monoxide
C. sulphur monoxide
D. sulphur dioxide

查看答案

搜索结果不匹配？点我反馈

更多问题

80% of British population is and only 20% is .

A. coastal...inland
B. inland...coastal
C. rural...urban
D. urban...rural

The following countries belong to Northern Europe EXCEPT .

A. Sweden
B. Germany
C. Finland
D. Norway

The English are .

Anglo-Saxons
B. Iberians
Celts
D. Britons

The following items are principal features of weather in Britain EXCEPT .

A. foggy in winters
B. plenty of rainy days
C. frequent wind
D. changeable weather