TOEFL Listening: ETS-TOEFL听力机经 - 118QXNX23YPFYMU2P$

What is the purpose of the professor's discussion of forest-dwelling bats? A. To explain why older trees are harvested more frequently than younger trees B. To illustrate why selecting trees to harvest is complicated C. To compare bats that roost in trees to bats that roost in caves D. To demonstrate that many bat species can coexist in a single ecosystem