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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1685

By the year of 2053 there will be 487 million aged people in China,      means that one third of the population will be over 60.

A.that B.which C.what D.where
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Bytheyearof2053therewillbe487m