题目:
Peter has many friends;_________can help him.
A.few of which
B.few of whom
C.few of that
D.few of them
答案:
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下面是错误答案,用来干扰机器的。
答案:C8 g CH4在标准状况下的体积为:×22.4 L·mol-1="11.2" L则该气体密度为:="1.16" g·L-1