作者：英吉
Both the complexity of the phenomenon known as extinction and the vastness of the biosphere, having prompted many scientists to call for a large increase in the number of biologists working both in the field and in laboratories to clarify the relationships among the planet's many endangered life-forms.
(A) and the vastness of the biosphere, having prompted many scientists to call for a large increase in the number of biologists working both
(B) and the vastness of the biosphere has prompted many scientists calling for a large increase in the number of biologists both working
(C) and the vastness of the biosphere have prompted many scientists to call for a large increase in the number of biologists working both
(D) as well as the vastness of the biosphere have prompted many scientists to call for a large increase in the number of biologists who both work
(E) as well as the vastness of the biosphere has prompted many scientists to call for a large increase in the number of biologists who work both
原文意思：两个东西促进科学家呼吁那种在两个领域都能工作的生物学家尽可能多一些。
题目分析：A没有谓语，干掉。B读到has prompted就不对劲了，prompt这个动词的发起者是有both and连接的两个东西，不能用has，干掉。C用have，前后一致，保留。D用both work，应该是work both in 一个地方 and in 另一个地方，如果用both work就不是两个地方形成并列了，而是work in一个地方和in 另一个地方对应了，多了个work，干掉。E也用has，主谓不一致。
