题目

 She _______ this book for nearly three weeks.   A. has borrowed       B. has lent          C. has bought        D. has kept 答案：答案：D 解析:考查延续性动词的用法。时间状语为：for nearly three weeks，用延续性动词。borrow，lend, buy均为非延续性动词，不能与一段时间连用。故选D。质量是0.5千克的水，温度从10℃升高到30℃，吸收的热量是    焦．