It ______ that Lucy has gone abroad. [ ]
A. is say
B. is said
C. was say
D. said
答案:B
颌下间隙感染处理方法中,下列哪项是错误的()
A.全身应用抗生素
B.早期切开引流
C.等待波动出现时切开引流
D.影响呼吸时,应早期行气管切开术
E.切开引流时需切开下颌舌骨肌
对SARS密切接触者的检疫期一般为()
A.3天
B.5天
C.7天
D.14天
E.21天