小兵张嘎的语法难题

晴天猪

以下是引用小兵张嘎在2003-3-14 12:20:00的发言：
谢谢楼上各位，我想再问一下，第一题中D错在哪儿？
再次感谢。

  
两个分句好像不是并列关系

大浪

1).i think paper of all kinds is different from all kinds of paper.  The former focus on paper, while the latter emphasize on the kinds.  This is also why D is wrong.
3).one more thing is that rate could be higher than rather than more than something as rate is an abstract n.  Concreate no. such as birds could be more than....