某女,经来先期,量少或多,色红质稠,手足心热,舌红少苔,脉细数,首选方:
A.两地汤
B.清经散
C.丹栀逍遥散
D.保阴煎
E.加减一阴煎
参考答案:A
She ____ tall and she ____ short brown hair.
A.is , have
B.is , has
C.are , have
D.are , has
微分方程y"=y'2的通解是()。
A.lnx+c
B.ln(x+c)
C.c2+ln|x+c1|
D.c2-ln|x+c1|