急性腹膜炎非手术治疗的指征
A．年老休弱，一般情况差
B．病程超过24小时，腹部症状好转
C．原发病灶不明
D．病情复杂
E．中毒症状明显
参考答案：B
——You are leaving your school. How do you like it?
——Very much, of course, I ______ this school since I moved here.
A．came to
B．have gone to
C．have been to
D．have been at
在产品责任的各关系方中，( )应该承担最大风险。
A．批发商 B．进口商 C．制造商 D．出口商
