This reading is not _____ that one. [ ]
A. as easier as
B. so easy than
C. as easy as
答案:C
原发性再障的病因是()
A.化学物质
B.医用药物
C.放射线
D.病毒感染
E.以上均非
凉血不留瘀,活血不动血,善治无汗骨蒸的药物是()
A.银柴胡
B.生地黄
C.地骨皮
D.牡丹皮
E.郁金