51. What is the main theme of this passage?
(A) Promoting the benefits of solar energy
(B) Encouraging opposition to the project
(C) Creating new jobs in the village
(D) Cricketers are worried about liability issues
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統計: A(61), B(365), C(20), D(38), E(0) #1806269
統計: A(61), B(365), C(20), D(38), E(0) #1806269