题目

每处错误仅涉及一个单词的增加，删除或修改。增加：在缺词处加一个漏字符号（∧）, 并在其下面写出该加的词。删除：把多余的词用斜线（＼）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。I'm gladly to receive your novel. Thank you for such lovely a gift, for I had been expecting it for a long time. This novel offers to me more understanding of American society and daily life. I know you're interesting in Chinese festivals, and therefore I have chosen an album of paper cutting for you. Paper cutting某老师从星期一到星期五收到信件数分别是10，6，8，5，6，则该组数据的方差；