题目

一I've heard Joe was praised by his boss again.一Oh, that's because he is always _____ the first to complete his tasks.A.for B.among C.of D.as 答案：【答案】B【解析】句意：——我听说乔再次被他的老板赞扬了。——哦，这是因为他总是在最早完成任务的人之中。考查介词。for因为；among在……之中；of……的（表示所属关系）；as作为；根据“because he is always _____ the first to complete his tasks”可知因为他总是在最早完成任务的人之中，可推测出此处等体积的球和正方体，他们的表面的大小关系是________．