题目：
强心苷治疗慢性心功能不全的直接作用是
A．扩张血管
B．减慢心率
C．利尿
D．抑制房室传导
E．增强心肌收缩力
答案：
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参考答案：C解析：[考核内容] 团队能力开发
强心苷治疗慢性心功能不全的直接作用是A．扩张血管 B．减慢心率 C．利尿 D．抑制房
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