下列各项,为胃气渐复之象的是()。
A.舌苔剥脱部位时时移动
B.舌苔从全到剥落
C.舌苔剥落后复生薄白苔
D.剥脱处全无舌苔
E.未剥落处仍有滑苔
参考答案:C
Sam came to Baihai in 2002. He ________ here for nine years. [ ]
A. lives
B. was living
C. has lived
D. will live
下列哪一种指标常用来说明疾病的严重程度()
A.患病率
B.病死率
C.发病率
D.罹患率
E.死亡率