In1914 a total of 469,000 cars and trucks were produced in the United States, butin 1929 almost twice the numbers of tucks alone came off the assemblylines.
A the numbers of tucks alone
B that number of trucks alone
C the number of trucks by themselves
D as many trucks themselves
E as many trucks by themselves
话说答案是B，原因是the指代不清
但是，在曼哈顿上说，表示比较的只有两种，第一种是times+as。。。as
第二种给了两个句子：
the cost of a ticket is 12, six times the cost ten years ago
The concert was attended by 300 people, twice the previous attendance
这里都没有用that，这是为什么呢？
求大牛指导作者: Serena11457 时间: 2012-7-16 20:19
