以下是引用bryony在2004-3-31 10:21:00的发言: it 代同物-原物。简单的说,这里就是代: amout used by visible equipment..... 很长的那一串。 that 代同类物。 可以指代amout, 即可以代amout used by any other equipment, 地震的那题也是类似情况。还有OG里面有一条比较protein 的, 好像wheat 和rice 的问题,也涉及到。
这个总结今天偶又体会了一次...很正确
记得jnlvo提到
that一般不是单独使用, 总和that of/ that amount
17. In the 1980’s the rate of increase of the minority population of the United States was nearly twice as fast as the 1970’s. (A) twice as fast as (B) twice as fast as it was in (C) twice what it was in-正确 (D) two times faster than that of (E) two times greater than
rate这里的意思应该是速度
速度不能比较快慢, 速度只能比较大小, 类似于
density不能比较多少, 只能比较大小
请指正 |