Antarctic _______ we know very little is covered with thick ice all the year round.A.which B.where C.that D.about which 为什么不能用wherewhere 不是等于 介词+which么

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Antarctic _______ we know very little is covered with thick ice all the year round.A.which B.where C.that D.about which 为什么不能用wherewhere 不是等于 介词+which么

Antarctic _______ we know very little is covered with thick ice all the year round.A.which B.where C.that D.about which 为什么不能用wherewhere 不是等于 介词+which么
Antarctic _______ we know very little is covered with thick ice all the year round.
A.which B.where C.that D.about which
为什么不能用where
where 不是等于 介词+which么

Antarctic _______ we know very little is covered with thick ice all the year round.A.which B.where C.that D.about which 为什么不能用wherewhere 不是等于 介词+which么
about Antarctic在从句中不是做地点状语,所以不能用where

定语从句____about which ___ we know very little=we know very little about Antarctic。
know about为短语,意思是:了解,知道……的情况;知道关于
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