[问答题,简答题] 如何区别ABO血型?

残肢幻痛的类型有() ["A．肌痉挛型","B．麻木型","C．挤压型","D．烧灼型","E．电休克型"] 保持感光效应不变，摄片距离增加一倍后管电流量应为原来的() ["A．1倍","B．2倍","C．3倍","D．4倍","E．5倍"] 何谓ABO正、反定型? 什么是血型?红细胞有多少血型? 颅内最常见的病理钙化是() ["A．松果体","B．侧脑室脉络膜丛钙化","C．硬脑膜钙化","D．蛛网膜粒钙化","E．脑垂体钙化"] 如何区别ABO血型?