下列哪个有6β-羟基，亲水性增大，中枢作用弱
A．山莨菪碱B．阿托品C．莨菪碱D．樟柳碱E．东莨菪碱
参考答案：A
疮疡内治，清气分热之常用方剂是（）
A.五味消毒饮
B.仙方活命饮
C.黄连解毒汤
D.犀角地黄汤
E.清骨散
He learned hard ________ he could go to a good university.[ ]
A. because
B. in order to
C. so
D. so that
