请各位NN解答几道语法真题~~~

According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive Internet data over regular telephone lines with speeds much higher than is currently possible.

A.      with speeds much higher than is

B.      with speeds that are much higher than are

C.      at much higher speeds as are

D.     at much higher speeds than that

E.      at speeds much higher than are

是选D 还是E  好呢?

The electronics company has unveiled what it claims to be the world’s smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs less than 11 ounces.

A.      to be the world’s smallest network digital camcorder, the length of which is that of a handheld computer, and it weighs

B.      to be the smallest network digital camcorder in the world, which is as long as a handheld computer, weighing

C.      is the smallest network digital camcorder in the world, which is as long as a handheld computer, and it weighs

D.     is the world’s smallest network digital camcorder, which is as long as a handheld computer and weighs

E.      is the world’s smallest network digital camcorder, the length of which is that of a handheld computer, weighing

       选A 对么?

The Environmental Protection Agency’s proposal to place restrictions on both diesel fuel and diesel engines has sparked a counterattack by the oil industry, saying that the move will exacerbate the nation’s fuel supply problems.

A.      on both diesel fuel and diesel engines has sparked a counterattack by the oil industry, saying

B.      on both diesel fuel and engines have sparked the oil industry to counterattack, and they say

C.      on both diesel fuel and diesel engines has sparked a counterattack by the oil industry, which says

D.     both on diesel fuel and engines has sparked the oil industry to a counterattack, saying

E.      both on diesel fuel and diesel engines have sparked the oil industry to counterattack, and it says

         选A对么?

请各位NN帮忙解答呀!!

第一题。我选E

第二题我选D，A不 平行

第三题支持A

1, 选E,补全：at speeds much higher than are they(speeds) currently possible

2,  选D,  ...unveiled (what it claims is ..., which is ....and weights). 括号里做unveil 的宾语。划线部分对称。A确实不对称，the length of which is ... and the weight of which is ...岂不更好？

3,  选A, 考虑平行结构排除CDE, proposal做主语排除B（不应该用have）

SORRY, DDC