A:①②
B:①④
C:②③
D:③④
解方程:(2x﹣1)2=25.
A woman____ ____ by a self-driving car as she walked her bicycle across a street.
根据人的性别遗传图谱(如图),回答下列问题:
作为正在接受九年义务教育的学生,应履行受教育的义务,但存在个别同学上课玩手机的现象,你想对他们说 ( )