标题: 求助：PREP语法笔记202 [打印本页] 作者: ran2010zx 时间: 2011-2-15 14:48 标题: 求助：PREP语法笔记202 Providing initialevidence that airports are a larger source of pollution than they were oncebelieved to be, environmentalists in Chicago report that the total amount ofpollutant emitted annually by vehicles at O’Hare International Airport is twiceas much as that which is being emitted annually by all motor vehicles inthe Chicago metropolitan area. A. as much as that which is being emitted annually by all B. as much annually as is emitted by the C. as much compared to what is annually emitted by all D. that emitted annually byall (D) E. that emitted annually compared to the twice that 的表达？？？是不是 twice that就表示twice as much as those ？？？求解答，谢谢！作者: aeoluseros 时间: 2011-2-15 14:58
twice是predominator，that是代词指代amount.