原题
录音 1
What does the speaker imply about vents in the termite mounds?
AThey are located primarily below ground level.
BThey help to protect the termites from predators.
CThey are much larger than termites' bodies.
DTermites use them to actively control the airflow in the mounds.
正确答案：D
解题思路
老师暂未填写解题思路。