在定语从句中which和that的用法区别答:定语从句必须用 that 引导。all,every,any,little,few,much,no,only,very,the + 序数词,the + 形容词最高级 eg.this is the cleanest park that you can imagine.eg.this is the only book that has been written in french.在 who 或 which 引导的特殊疑问句中,限制性定语从句必须用 that...