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 Beijinghassetthecity’spopulation

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 Beijinghassetthecity’spopulation

 Beijing has set the city’s population ________ at 23 million by 2020 due to water scarcity and big city diseases such as traffic jam.

A. budget                       B. ceiling                      C. explosion                  D. standard

【回答】

B

知识点:非谓语动词

题型:选择题