问题
选择题
— What do you think made Mary so upset?
— ____ her new bike. [ ]
A. Lost
B. As she lost
C. Losing
D. Because of losing
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— What do you think made Mary so upset?
— ____ her new bike. [ ]
A. Lost
B. As she lost
C. Losing
D. Because of losing
答案：C
从高出地面3 m的位置竖直向上抛出一个小球,它上升5 m后回落,最后到达地面,如图所示,分别以地面和抛出点为原点建立坐标系,方向均以向上为正,填写以下表格:
| 坐标原点的设置 | 出发点的坐标 | 最高点的坐标 | 落地点的坐标 |
| 以地面为原点 | |||
| 以抛出点为原点 |