Which of the following is true according to the text? One factor causing death on organ transplantation is ______.

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问题 Which of the following is true according to the text?
One factor causing death on organ transplantation is ______.

选项 A、heavy bleeding during surgery
B、destruction of patients’ immune system
C、objection from patients to taking organs of others
D、doctors’ lack of confidence

答案A

解析 分析推理题。第一段最后一句指出,Dr Starzl和同事们开发了新技术来减少手术中的大出血并用更好的方法来防止受体免疫系统对器官的排斥。由上下文及常识可知大出血肯定是使接受器官移植手术者死亡的一个原因,选[A]。其余三项都不对。
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