题目内容

某医学院曾收治三例分别在院外接受过试验性肝穿刺引起急性腹膜炎的患者。术中医生在抽出脓液5～10m1后，即拔除穿刺针，术后未做常规处理，2小时后呈急腹症症状。结果二例治愈，一例死亡。对试验性肝穿刺的下列说法中错误的是

A. 只要动机是好的，虽然是事故，它也有一定的正价值
B. 不论穿刺动机如何，只要造成事故，它的价值就是负价值
C. 肝穿刺应该由有训练的医生进行，一定要避免盲目性和危险性
D. 医学研究的试验设计必须科学、严密
E. 试验前必须经有关专家审定是否符合科学要求

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