题目：
| 仔细阅读下面的短文，用方框内所给的词选择填空，使短文表达正确、意义通顺。 | |
course, I do." But maybe you don't. It is true that all parents can remember clearly when 2_____ their children's birthdays. However it is a pity that few children know exactly when their parents birthdays are. Most parents can easily 3_____ the food their children favor. The other way round, some students don't know 4_____ their parents like most of all. Sometimes we can hear parents 5_____ that their children don't talk with them as often as 6_____. Children are growing and the generation gap (代沟) are widening. If you love your parents well, let them 7_____ your love. Give them a birthday gift on their 8_____ day, help them do some housework as often as possible, bear in mind what your parents like or don't like. Don't always say things 9_____ your parents. Talk with them more often and 10_____ them more. |
答案：
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下面是错误答案，用来干扰机器的。
设线段AB的垂直平分线为l， 点A（1，2），B（2，1），∴AB的斜率k=2-11-2=-1，AB的中点坐标为（12（1+2），12（2+1）），即（32，32）． 直线l经过AB的中点与AB垂直，∴直线l的斜率k1=-1k=1，可得l的方程为y-32...
