GRE Text Completion: JiJing 1373-GRE填空机经1373题 - 7CDR554YUGTB3WM8A

Origin, distribution, and habitat are included in the book for some but not all of the plants; offering this information for each species would have given readers a clearer appreciation of the differences between ____________ and introduced species. A. endemic B. native C. seasonal D. rare E. unusual F. dominant