求助GWD-11-Q33:

zhushanyi

（1）     GWD-11-Q33:

After more than four decades of research and development, a new type of jet engine is being tested that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit.

 

A.        tested that could eventually propel aircraft anywhere in the world within two hours or help

B.        tested that could eventually have the capability of propelling aircraft anywhere in the world within two hours or to help

C.       tested, eventually able to propel aircraft anywhere in the world within two hours, or helping

D.       tested, and it eventually could propel aircraft anywhere in the world within two hours or helping

tested, and it could eventually have the capability to propel aircraft anywhere in the world within two hours or help

大家看看,选A还是E啊,我选E,因为觉得A中THAT似乎不能进行限定修饰,但是E的CAPABILITY又应该用OF....

Zeldaw

恩 争议题 ，

A，that与被修饰对象engine中间隔了谓语

E：could与have the capability to有重复之嫌

capability 是 of和 to do均可

NgKKh

靠。到现在还没有答案啊？

heyarthur

现在有点觉得A会更好一点点.... E中and后面的it是不是该省略的啊？同一个主语 engine，be tested and have the capability....