When his mother came in , he stopped .[ ]
A. cry
B. cried
C. to cry
D. crying
答案:D
Crohn病最常见的并发症是()
A.急性肠穿孔
B.中毒性结肠扩张
C.直肠结肠癌变
D.肠梗阻
E.腹腔内脓肿
首选青霉素治疗的疾病有()
A.慢性斑块型银屑病
B.梅毒
C.硬红斑
D.急性丹毒
E.急性淋病