Which of the following is the best title for the passage?
A. Solar Power
B. Schools Go Solar
C. Cheap Energy Sources
D. A Global Perspective
A. Solar Power
B. Schools Go Solar
C. Cheap Energy Sources
D. A Global Perspective
【答案】
A. Solar Power
B. Schools Go Solar
C. Cheap Energy Sources
D. A Global Perspective
A. Solar Power
B. Schools Go Solar
C. Cheap Energy Sources
D. A Global Perspective
【答案】
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