Her are two books on the desk, are on computers．A.both of thatB.all of whichC.bo
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Her are two books on the desk, ________ are on computers．
A.both of that
B.all of which
C.both of which
D.non of which
试题答案
C
前半句最后点的是逗号，表明后半句是一个非限定性定语从句：两本书都是关于计算机的。