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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:809

—How much is _____ for a schoolbag?
— Experts say students should carry _____ more than 10% of their body weight.

A.too much; 不填 B.much too; no
C.too many; 不填 D.too much; not
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—Howmuchisforaschoolbag?—Exper