题目

His studies on literature are very varied, ________ from Chinese literature to western literature.A.ranges B.containing C.ranging D.covering 答案：【答案】C【解析】考查动词词义辨析和非谓语动词。句意：他对文学的研究非常广泛，从中国文学到西方文学都有涉猎。B. containing包含；C. ranging范围，短语rang from to“范围从……到……”；D.cover覆盖，根据后文from Chinese literature to western literature可知表示“从……到……”应用range from to，且分析句子29、已知2x-3的立方根是5，求x的平方根是多少？