A：划分经度的起点
B：东西半球的分界线
C：南北半球的分界线
D：90°纬线
已知集合A={x|a﹣1＜x＜2a+1}，B={x|0＜x＜1}，若A∩B=∅，实数a的取值范围是____
—There will be more and more robots going into people's homes.
— . We might be able to leave all the chores to them.
8×0.25－8x=0.4
x=____
The clothes in the wardrobe(衣柜). Don't put them on the bed.
