题目

It appears that there is never enough time for many senior school students. Here are several steps you can take to organize your time better.First, a to-do list is a must every day. It makes it easy to plan any of the activities or meetings you may have in addition to homework. Be sure to set priorities (优先的事物). 36.【1】Make use of spare time wisely. Do you have study hall(自修时间) ? Instead of wasting that time, read a book or do homework. 37.【2】 If a friend asks you to do something and you have homework to do, realize which is more important and see your friend later.Dec下表给出了惠华中学七年级（一）班5名学生的体重情况．（1）请完成下表： 姓      名 王玲 刘辉 黎明 陶钧 冯玉 体重（千克） 44 46 体重与平均体重的差值 -1 +2 -3 +4（2）七年级（一）班学生的平均体重是______千克．（3）该表中最重与最轻的同学体重相差______千克．