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Air quality in Britain has improved considerably in the last 30 years. Total emissions of smoke in the air have risen by over 8
Air quality in Britain has improved considerably in the last 30 years. Total emissions of smoke in the air have risen by over 8
admin
2010-06-18
98
问题
Air quality in Britain has improved considerably
in the last 30 years. Total emissions of
smoke in the air have risen by over 85 per cent 【1】______
since 1950. The domestic smoking control 【2】______
program has been particularly important in achieving
this result. London and other major cities are no 【3】______
longer have the dense smoke-laden "smogs" of the
1950s, but in central London winter sunshine has 【4】______
increased about 70 per cent since 1958. 【5】______
Since 1990, daily air pollution data from the
British monitoring network has been made available 【6】______
to the public by the Department of the
Environment’s Air Quality Bulletins. These give the
concentrations of three main pollutants--ozone, nitrogen
dioxide and sulfur dioxide -- and grade air quality
on a scale between "very weak" and "very 【7】______
good". The information features in television and
radio weather reports, appears in many national and 【8】______
local newspapers. Therefore, the data are available 【9】______
on a special free telephone number and on videotext
systems.
A comprehensive review of the issue of urban
air quality was published in January 1992. Three
independent committees of which experts have been 【10】______
established to advise on different aspects of the problem,
and will set guidelines and targets for air quality.
The network is also being extended and up-
graded at a cost of £ 10 million.
【M4】
选项
答案
将but改为and。
解析
根据上下文,我们可以看出这两个分句是顺承关系,而不是转折关系,例如;It does not take much strength to do things,but it requires great strength to decide on what to do。做事并不太费劲,可是决定做什么却要费很大的劲。The young physician starts life with 20 drugs for each disease,and the old physician ends life with one drug for 20 diseases.年轻的医生开始行医时,以二十种药治疗一种疾病;年老的医生结束医业时,以一种药治疗二十种疾病。
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0
专业英语八级
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