已知x-y=6,xy=-3,则xy2-x2y=______.
xy2-x2y=xy(y-x)=-3×(-6)=18,
故答案为:18.
气厥实证的治法是()
A.开窍、顺气、解郁
B.平肝、潜阳、降逆
C.行气、化痰、化瘀
D.活血、理气、化湿
E.燥湿、化痰、解郁
around the fire, the tourists danced with the local people.
A.Gather
B.To gather
C.Gathering
D.To be gathering