TOEFL Listening: ETS-TOEFL听力机经 - 48L41BYHG5LF73AGP$

What is the main purpose of the lecture? A. To discuss the design of the earliest homes built in the eastern Mediterranean B. To discuss evidence indicating a change of lifestyle among a group of prehistoric people C. To compare evidence of early human settlement in different regions of the world D. To compare different techniques used to process grains in the eastern Mediterranean