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How many cities will have air quality monitoring systems installed by the end of
How many cities will have air quality monitoring systems installed by the end of
游客
2024-10-01
38
管理
问题
How many cities will have air quality monitoring systems installed by the end of this year?
"All large and medium-sized Chinese cities will have greater air quality monitoring by 2010." says a government official. The government has spent 150 million yuan on air quality monitoring systems across China since 2000 when officials began paying great attention to air quality monitoring. More than 220 cities now have air quality monitoring systems and 42 others will have systems in place by the end of this year.
选项
A、42 cities.
B、220 cities.
C、150 cities.
D、262 cities.
答案
D
解析
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