每天练习 英语练习

Paper produced every year is _______ the world's production of vehicles.

A.the three times weight of          B.three times the weight of

C.as three times heavy as            D.three times as heavier as

  
昨日习题答案：

标准答案是：A

本题解析:同位语从句that we'll never know what a UFO is — not ever作a feeling的同位语,解释a feeling的具体内容.that连接同位语从句时,只起连接作用,不作从句的任何成分.