Bynineo'clock,alltheOlympictorchbearershadreachedthetop...

來源：國語幫 2.32W

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．off which

C．from which D．above which

D　考查非限制*定語從句。句意：到9點鐘所有奧林匹克火炬手都已到達了珠穆朗瑪峯頂，很快在峯頂上出現了一道罕見的*虹。從四個選項可以看出，本題考查“介詞＋which”引導的非限制*定語從句。此處應根據句意確定介詞為above，故D項符合語境。