胺碘酮（）
A.延长动作电位时程的药物
B.具有交感神经抑制作用的抗高血压药
C.第一个开发的钙离子拮抗药
D.主要用于治疗心力衰竭的药
E.对磷酸二酯酶有特异性抑制作用的药
参考答案：A
解析：1.抗心律失常药Ⅲ类，即延长动作电位时程药，其代表药有胺碘酮等。 2.维拉帕米为钙通道阻滞药，即钙离子拮抗药。 3.可乐定的作用包括：①激动延脑孤束核α受体或延髓腹外侧嘴部的咪唑啉受体，降低外周交感张力；②激动外周交感神经突触前膜的α受体。 4.地高辛加强心肌收缩力（正性肌力作用），使心肌收缩时张力提高和心肌缩短速率提高。在加强心肌收缩力的同时，使心力衰竭患者的心排血量增加、心肌耗氧量减少，其主要适应证是慢性心功能不全。 5.氨力农是磷酸二酯酶抑制药（PDE-Ⅲ抑制药），具有明显增强心肌收缩力和舒张血管作用，可增加心排血量，减轻心脏负荷，降低心肌耗氧量，缓解慢性心功能不全症状。
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| When I was walking down the street the other day, I happened to 1 a small brown leather purse lying on the sidewalk. I picked it up and opened it to see if I could 2 the owner's name. There was nothing inside it 3 some change and an old photo―a picture of a woman and a young girl of about twelve years, who looked like the woman's daughter. I put the photo back and 4 the purse to the police station, where I 5 it to the desk sergeant. 6 I left, the sergeant took down my name and address 7 the owner might want to write and thank me. That evening I went to have dinner with my aunt and uncle. They 8 a young woman so that there would be four people at the table. Her face was familiar. I was 9 sure that we had not met before, but I could remember where I had seen her. In the course of conversation, however, the young woman happened to mention that she had lost her purse that afternoon. 10 I realized where I had seen her. She was the young girl in the photo, although she was now much older. | ||||
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