△ABC中，D 、E分别为AB、AC的中点，若DE=4，AD=3，AE=2，则△ABC的周长为（ ）。
18
(2013·台州高三检测)Linda’s health is improving________day by day，and the doctor has advised her to stay home for a couple of weeks.
A．frequently
B．gradually
C．fluently
D．actually
组成为枳实、芍药、柴胡、炙草的方是（）
A.小柴胡汤
B.大柴胡汤
C.四逆散
D.四逆汤
