原题
录音 1
How does the speaker organize the talk on solar power?
AShe outlines solar power's history as an alternative energy resource.
BShe lists the technologies involved in generating solar energy.
CShe offers case studies of successful solar power projects.
DShe compares and contrasts the benefits and challenges of solar power.
正确答案：D
解题思路
老师暂未填写解题思路。