作者：英吉
By pressing a tiny amount of nitrogen between two diamonds to a pressure of 25 million pounds per square inch, scientists not only were able to transform the gas into a solid, but they also created a semiconductor similar to silicon.
(A) not only were able to transform the gas into a solid, but they also created
(B) not only were able to transform the gas into a solid but also creating
(C) were able not only to transform the gas into a solid but to create
(D) were able not only to transform the gas into a solid but also creating
(E) were not only able to transform the gas into a solid, but they were also able to create
原文意思：通过一种方式，科学家不仅能把气体转化成固体而且能干另外一个事情（后面这个事情看不懂）
题目分析：not only but also之间有个并列关系，A中but后面的they多余，因为create和transform发起者没变，杀。B的creating和transform不对应，杀。C前后都用to do ，比较对应，留着。D前面用to do后面用doing，杀。E中they和A一样多余，杀！
