A:窗外另一列车相对她不动,则她坐的车一定是对地静止的
B:窗外另一列车相对她向东行驶,则她坐的车一定对地向西行驶
C:小球突然“自动”向东滚动,则她坐的车一定向西启动
D:小球突然“自动”滚动,则她坐的车运动状态一定发生了改变
阅读理解
Hello! My name is John, I have a happy family. There are four people in my family. They're my father, my mother, my baby sister and I. We have a beautiful garden. There are two trees and some flowers in it. There are some apples on the tree. Do you like apples and flowers? Welcome to my home.
如图,小明在大楼45米高(即PH=45米,且PH⊥HC)的窗口P处进行观测,测得山坡上A处的俯角为15°,山脚B处得俯角为60°,已知该山坡的坡度i(即tan∠ABC)为1: 3 .(点P、H、B、C、A在同一个平面上.点H、B、C在同一条直线上)
____dogs____well?