花钱弄明白那些调查中是不是有疑点，这对于埃克森来说几乎没什么价值。

It was hardly necessary to be given money by Exxon to see what was dubious about those inquiries.

youdao

最后，所有以上的结论都是基于一个全国调查的结论，但是这些结论却疑点重重。

Finally, all these conclusion mentioned by author is based on the statewide survey, it is highly doubtful that whether the survey's results reliable.

youdao

仍然存在很多疑点需要调查取证。

There are still more questions to be answered.

youdao