GRE Text Completion: JiJing 1373-GRE填空机经1373题 - 44Z3877N5JQ47O_2A

Not all paleontologists agree that connections between the continents were (i)____________ just after the extinction of the dinosaurs. Some hold the view that North America, Asia, and South America had (ii)____________ immediately following the dinosaur extinction, pointing to (iii)____________ between ancient kinds of mammals that existed on all three continents at this time in support of their argument. A. significant B. lasting differences C. similarities D. permanent E. extensive contacts F. intermediaries G. limited H. trivial likenesses I. hostilities