Nowadays, many people walk to work, Copenhagen（哥本哈根）Conference calling for living a low-carbon life to cope with global warming.A.in relation toB.in terms ofC.in apposition toD.in response to
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D解析这题考察词组辨析：A. in relation to关于，B. in terms of就…而言，D. in response to做为…的回应，D项符合句意：如今，许多人步行上班，响应哥本哈根会议呼吁低碳生活应对全球变暖。