五味子中的成分主要是
A.简单香豆素
B.呋喃香豆素
C.联苯环辛烯型木脂素
D.木脂素
E.吡喃香豆素
参考答案:C
下列哪些项目属于脑膜刺激征( )
A.Kernig征
B.Lasègue征
C.Brudzinski征
D.Babinski征
E.Gordon征
—Why shouldn’t I disturb my brother these days?
—Because he needs to think about job advertised in the paper he can take.
A.how
B.where
C.which
D.that