定语从句中 HYPERLINK that与who的用法区别?1. 两者均可指人有时可互换(包括当先行词为 all anyone someone等同时也包括先行词受the only等的修饰时): All that [who] heard him were delighted. 所有听了他讲话的人都很高兴He is the only one among us that [who] kno