问几个问题，请朋友指教一下，谢谢！

yangkang518

第一次发贴，不知道是不是应该在这里，呵呵，这是新东方发的蓝皮书上后面PART A的题，有几个实在不太明白，希望有朋友能指点一下
    

81．In 1973 mortgage payments reprensented twenty-one percent of an
anverage thirty-year-old male’s income;and forty-four percent in 1984.

    

 

    

A.     
income;and forty-four percent
in 1984

    

B.     
income;in 1984 the figure was
forty-four percent

    

C.     
income,and in 1984 forty-four
percent

    

D.    
income,forty-four percent in
1984 was the figure

    

E.     
income that rose to forty-four
percent in 1984

    

 

    

这个题不太明白的是C项为什么不可以看作是一种相同位置的省略

    

 

    

89．A recent national study of the public schools shows that there
are now one microcomputer for thirty-two pupils,four times as many than there
were four years ago

    

 

    

A.     
there are now one microcomputer
for every thirty-two pupils,four times as many than there were

    

B.     
there is now one microcomputer
for every thirty-two pupils,four times as many than there were

    

C.     
there is now one microcomputer
for every thirty-two pupils,four times as many as there were

    

D.    
every thirty-two pupils now
have one microcomputer,four times as many than there were

    

E.     
every thirty-two pupils now has
one microcomputer,four times as many as

    

 

    

答案是C，不明白最后那个were为什么是对的

    

 

    

91．Like many self-taught artists,Perle
Hessing did not begin to paint until she was well into middle age.

    

 

    

A.     
Like

    

B.     
As have

    

C.     
Just as with

    

D.    
Just like

    

E.     
As did

    

 

    

A 和D有什么区别吗？

dangdddddd

先看看这个

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=70082