定语从句中是不是of后面只能加whom和which答:2,复杂介词+关系代词(which, whom, whose) 常用复杂介词:as a result, at the back of ,because of, in front of, in the middle of, at the bottom of, on the top of, at the foot of 注意:但含有介词的短语动词一般不能拆开,如 look after, be made of, take part in, look for...