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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:1189

.It is well known that water is not _____ endless resource,nor _____ that can be made once more.

A.the, / B.an, one C.an . that D./, one
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.Itiswellknownthatwaterisnoten