TOEFL Listening: TPO-TOEFL阅读TPO - 6IO2TV1L31SI19P4N$

Paragraph 3 supports the idea that white-tailed antelope squirrels and Hams' antelope squirrels have which of the following in common? A. They are the two smallest rodents now found in the southwestern United States. B. They have white coloring underneath their tails. C. They cannot cross the Grand Canyon. D. They cannot survive in desert conditions.