慢性再生障碍性贫血病人最常见的感染是（） ["败血症","上呼吸道感染","尿路感染","肠道感染","皮肤感染"] 治疗洋地黄中毒伴缓慢性心律失常时宜选用（） ["苯妥英钠","阿托品","普萘洛尔","呋塞米","利多卡因"] 下列哪项是再生障碍性贫血的主要原因（） ["骨髓造血功能衰竭","红细胞破坏过多","红细胞寿命缩短","造血原料缺乏","红细胞内在缺陷"] 心力衰竭并发心房扑动时首选（） ["普萘洛尔","普罗帕酮","奎尼丁","快速洋地黄制剂","胺碘酮"] 下列不属于小细胞性贫血的是（） ["缺铁性贫血","海洋性贫血","慢性感染性贫血","铁粒幼细胞性贫血","再生障碍性贫血"] 诊断右心衰竭最可靠的体征为（）