桑杏汤证有
A.头痛头晕,目赤耳鸣
B.发热,微恶风寒,咳嗽少痰
C.烦渴引饮,胸满胁痛
D.咽干鼻燥,苔薄白,舌边尖红欠润
E.腹满、便秘
参考答案:B,D
She closed the gate to _________ the dog from going out of the garden.[ ]
A. let
B. prevent
C. fight
D. drive
若一个多边形的内角和等于外角和,那么这个多边形的边数是 [ ]
A.3
B.4
C.5
D.以上结论均不正确