TOEFL Reading: ETS-TOEFL阅读机经 - W35Y7LZ53S4O5E32L$

Select the TWO answer choices that point to flaws in the tall-trees hypothesis, according to paragraph 2. To receive credit, you must select TWO answers. A. Many gliding animals are unable to ascend to the tops of tall trees. B. Gliding animals are not evenly distributed throughout the forests of the Southeast Asian region. C. In Southeast Asia, many gliding animals are found in places where trees tend to be relatively short. D. Many gliding animals begin their glides from positions midway up the trunks of trees.