这题老错，大家帮帮忙吧

vvccyy

In 1914 a total of 469,000 cars and trucks were produced in the United States, but in 1929 almost twice the numbers of tucks alone came off the assembly lines.
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

vvccyy

我选B，我觉得关键是that可以指代前面的469,000

-- by 会员 红尘道士 (2010/7/1 15:46:50)

同意
我弄错了，不好意思

-- by 会员 葛佳 (2010/7/1 16:03:49)

这下明白了，呵呵

葛佳

我选B，我觉得关键是that可以指代前面的469,000

-- by 会员 红尘道士 (2010/7/1 15:46:50)

同意
我弄错了，不好意思

vvccyy

a total of 469,000 cars  。。。 that number of trucks alone
that 指代car

-- by 会员 葛佳 (2010/7/1 15:47:03)

还是没有看明白，that为什么要指代car呢，后面一句说，1929年光卡车就是原先数目的两倍了。

vvccyy

是B，但是为什么用that呢，而不是用the number, 我就是因为这个弄不清楚，故选了C。

葛佳

a total of 469,000 cars  。。。 that number of trucks alone
that 指代car

红尘道士

我选B，我觉得关键是that可以指代前面的469,000

葛佳

twice / twa?s /
1
two times
He was questioned by police twice yesterday.
twice a day/week/year etc (=two times in the same day, week etc)
   
Letters were delivered twice a week only.None of our dinner menus are exactly the same twice over .
2
two times more, bigger, better etc than something else
twice as many/much (as something)
   
They employ 90 people, twice as many as last year.

twice as high/big/large etc (as something)
   
Interest rates are twice as high as those of our competitors.

twice the size/number/rate/amount etc
   
an area twice the size of Britain

葛佳

B么？