※ 引述《fangmole (Dean)》之铭言：
74.Paleontologist Stephen Jay Gould has argued that many biological traits
are not the products of natural selection, favored
"due to their enhancement of reproduction or survival, but that they are"
simply random by-products of other evolutionary developments.
(C) because they enhance reproduction or survival, but
(D) because they enhance reproduction or survival, but are
想询问实战上C、D的解题方法/观念
看了Ron及语法笔记的解释仍然不太明白为何选C会造成ambiguous
感谢各位版上神人释疑！！