A:(4,﹣5),开口向上
B:(4,﹣5),开口向下
C:(﹣4,﹣5),开口向上
D:(﹣4,﹣5),开口向下
要点提示1)Where did you go over the summer holiday? 2)Who did you go with? 3)How did you go there? 4)What did you do there? 5)How did you feel?
1860年10月,英法联军侵入中国北京,占领____。
一次函数y=2x-3的图象不经过的象限是( ).