So heavy is his _______ that he is as busy as a bee, unable to spare(抽出) even a day for his family in a month.A.blockB.sourceC.scheduleD.attitude
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C解析试题分析：名词辨析。A街区，大厦；障碍物；B来源；本源；C时间表；D态度；句意：他的时间安排是如此的紧张以至于他忙得像蜜蜂，一个月里抽不出一天的时间来陪家人。故C正确。考点：考查名词辨析
点评：名词的辨析集中在词义的上下文语境辨析和一些名词的固定搭配方面。