Besidestransplants involving identical twinswith the same genetic endowment , all patients receiving hearts or otherorgans must take antirejection drugs for the rest of their lives.
这个句子是错误的,OG的解释是:as in B, that somepatients are transplants, 所以besides+n,s v o句型里面是要考虑对象的对等问题的吧,至于逻辑主语应该不需要考虑。
以下引用版主在08年的一个帖子的说法: besides doing sth Besides being heartbroken, she felt foolish.