The nineteenth-century chemist Humphry Davy presented the results of his early experiments in his “Essay on Heat and Light,” a critique of all chemistry since Robert Boyle as well as a vision of a new chemistry that        Davy hoped to found.

1. a critique of all chemistry since Robert Boyle as well as a vision of a

2. a critique of all chemistry following Robert Boyle and also his envisioning of a

3. a critique of all chemistry after Robert Boyle  and envisioning as well

4. critiquing all chemistry from Robert Boyle forward and also a vision of

E   critiquing all the chemistry done since Robert Boyle as well as his own envisioning of

请问A为何不对？

我也选A。完美的平行。

其他都不平行：

B following 错,envisioning 没有名词 vision好

C a critque... envisioning(participle) 不平行

Dcritiquing（participle）和vision不平行

E critiquing(participle)和envisioning (gerund) 不平行

E不平行的。

不要看两个都是ing形式

ing形式叫动名词(gerund participle)，所以有的时候做（类）动词(participle)，有的时候做名词(gerund)。这两个在一起的时候不能平行的.

E就是这样，前个ing是（类）动词，后面一个是名词。