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  3. What was the volume of British exports to China in 2017? [br] [originaltext]The

What was the volume of British exports to China in 2017? [br] [originaltext]The

游客2025-01-16  17
问题 What was the volume of British exports to China in 2017? [br]  
The mind-boggling scale of the inaugural China International Import Expo in October, attended by 160,000 buyers from more than 80,000 companies, is evidence of the demand of economic cooperation between China and the UK. Within just six days, the hundreds of British firms at the fair together secured 2 billion pounds, about $2.55 billion, of commercial deals, which is over 10 percent of the $22.31 billion of British exports to China in 2017.
The National Health Commission has initiated a revision of China’s current indoor air quality standard on Nov.30. The Indoor Air Quality Standard is a crucial parameter for health and the environment. Released in 2002, the current standard stipulates the level of major health-related factors and technical measuring methods regarding indoor air quality.
选项 A、The concentration of methanal in a newly redecorated house.
B、The proportion of carbon dioxide in a bedroom.
C、The PM 2.5 level in the city area.
D、Air sample collection techniques in office buildings.
答案 C
解析 特定信息的找寻与判断。根据原文可知，《室内空气质量标准》涉及的内容包括“the level of major health-related factors and technical measuring methods regarding indoor air quality”，即与室内空气质量相关的影响健康的指标水平，以及技术检测手段。选项A、B、D均为室内相关指标或检测技术，选项C为室外空气污染，不包含在标准规定范围内，故应选择选项C。抓住关键词，判断相关性。
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