He needs his homework this evening . [ ]
A . do
B. does
C. doing
D. to do
答案:A
胸外伤病人的急救处理原则是()
A.立即剖胸探查
B.迅速重建胸内负压
C.立即胸腔闭式引流
D.保证呼吸通畅
E.立即胸腔穿刺
下述关于蕈样真菌病病理变化的叙述,哪一项是错误的
A.可见脑回样肿瘤细胞
B.可见鲍氏小脓肿
C.由B细胞发生
D.可扩散到淋巴结和内脏