题目

任务型阅读 Eating together as a family is a rare thing these days.Once I start my own family, I'll definitely do anything possible to establish a tradition of eating together as a family. Here's why. When you eat together as a family each day, your children will learn to respect both parents. They know you two are busy, but still find time to share meals with them. Learn good table manners When you have small kids, eating together as a family is an easy way to show and teach them good table manners, of course, if yours are good.,how to be on time so that other family members don't starve,2.物体在一水平面上做直线运动,先在大小为F的水平推力作用下匀速前进了一段距离,接着在方向不变大小为2F的推力作用下继续前进了相同距离,下列说法正确的是(  )A.整个过程重力对物体做了功B.前一段距离物体所受力合力为零C.后一段距离物体仍匀速运动D.前、后两段距离推力对物体做功相同
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