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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1282

The level of the river ___ 20 centimeters over the security line and ____must be taken to control the flood.

A.is measured; measures B.measures; measurement
C.measures; measures D.is measured; measurement
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Theleveloftheriver20centimeter