OG 11-4困惑

A. twice as much as 1977

B. twice as many as 1977

C. double what it was in 1977

D. double the figure for 1977

E. a number double that of 1977’s

疑惑：

1、B选项中，答案说如果改成twice as many as in 1997就是正确的，那么后面的比较对象可以省略么？全称是不是twice as many as the number(or it) in 1997?

2、what it was 太罗嗦，用the figure 或 it 替代可以吧？

3、D中，double the figure for 1977 ,这里 for可以用in 替代么，区别是？

4、E答案说awarkward and wordy,我的理解是a number可以省略，这里wordy。另外，that  是不是有指代表明的嫌疑？

5、it ,that,those ,these  等这些指代代词是不是最好尽量不要用，因为很容易引起指代不明，而歧义呢？

呵呵，比较罗嗦，NN们随便踢啦。

E 选项整个读起来就有问题啊 而且 of 1977's在GMAT里面是错误的结构  要么就of 1977 要么就1977's

2. Since 1981, when the farm depression began,
the number of acres overseen by professional farm-management companies have
grown from 48 million to nearly 59 million, an area that is about Colorado's size.

(A)  have grown from 48 million to nearly 59 million, an area that is
about Colorado's
size

(B)   have grown from 48 million to nearly 59 million, about the size of
Colorado

(C)  has grown from 48 million to nearly 59 million, an area about the
size of Colorado

(D)  has
grown from 48 million up to nearly 59 million, an area about the size of Colorado's

(E)   has grown from 48 million up to nearly 59 million, about Colorado's size

In choice C, the best
answer, an area about the size of Colorado
            clearly
describes a rough equivalence between the area of Colorado and the area overseen by the
companies. In A and B, the plural verb have does not agree with the
singular subject number. Choice A is also wordy, since that is
can be deleted without loss of clarity. The absence of an area in B and
E impairs clarity: the phrase beginning with about must modify a noun
such as area that is logically equivalent to the number of acres given.
In D and E up to is unidiomatic; the correct expres­sion is from x to
y. In D, the size of Colorado's is
unidiomatic, since of Colorado
forms a complete possessive.

同问～

另外，这题中double的词性是什么呢？