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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:857

By nine o'clock,all the Olympic torch bearers had reached the top of Mount Qomolangma,________appeared a rare rainbow soon.

A.of which
B.on which
C.from which
D.above which
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Bynineoclock,alltheOlympictorc