心肌梗死24h内并发急性左心衰竭时最不宜应用
A．吗啡
B．洋地黄
C．利尿药
D．硝酸甘油
E．ACE抑制剂
参考答案：B
Communication networks can be classified in terms of their physical arrangement or (74) . Three common (74) are the star, bus, and ring.
A．structures
B．topologies
C．protocols
D．frames
血沉增快可见于
A．心绞痛B．血液浓缩C．活动性结核D．真性红细胞增多症E．良性肿瘤
