题目

．周初实行分封的目的是为了：                               （    ） A．建立军事屏障，防止外族入侵        B．削弱功臣、贵族的权力 C．排斥异姓诸侯，团结同姓诸侯        D．巩固奴隶制国家政权 答案：D— Is John coming by train ? — He should, but he ______ not. He likes driving his car. A．mustB．canC．needD．may