A:洗发水洗头
B:洗洁精洗碗
C:水洗试管内的高锰酸钾
D:肥皂洗衣服
Workers built shelters for s____ whose homes had been destroyed.
山川凝浩气,物华启人文。
—Look,here comes your dream girl. Invite her to dance.
—________ What if she refuses me?
已知集合A={1,2,3},B={x|x2-x-2=0,x∈R},则A∩B为 ( ).