如图所示,车厢里悬挂着两个质量不同的小球,下面的球比上面的球质量大,当车厢向右作 发布时间:2017-07-17 23:48 │ 来源:www.tikuol.com 题型:选择题 问题: 如图所示,车厢里悬挂着两个质量不同的小球,下面的球比上面的球质量大,当车厢向右作匀加速运动(空气阻力不计)时,下列各图中正确的是 [ ]A、B、C、D、
题型:选择题 Directions:Write an essay of 160—200 words based on the following pie charts. In your essay, you should first describe the pie charts, then interpret its meaning, and give your comment on it.You should write neatly on ANSWER SHEET 2. (20 points) 查看答案