GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - C52UCH15AY02496NJ

According to the passage, the song sparrow is unlike the warbler in that the song sparrow A. uses songs mainly in territorial behavior B. continuously composes long and complex songs C. has a much larger song repertoire D. repeats one song type before switching to another E. responds aggressively to recorded songs