下列说法中正确的是[ ]
A．细菌的营养方式是腐生
B．细菌、酵母菌的细胞结构完全一样
C．霉菌对人类都是害的
D．有些真菌可以食用
答案：D
Everything he _____ to his country. [ ]
A. had was contrbuted
B. had been contributed
C. had to be contributed
D. had contributed
急性腹膜炎治疗后最常见的残余脓肿是（）
A.肝脓肿
B.盆腔脓肿
C.膈下脓肿
D.肠间隙脓肿
E.脾周围脓肿
