Cornell president believes that students have taken great initiative in Earth-protecting movement.A:正确 B:错误答案: 正确分析：Para 1: Cornell president David Skorton puts it best: “Sustainability is no longer an elective”.

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Cornell president believes that students have taken great initiative in Earth-protecting movement.A:正确 B:错误 答案: 正确 分析：Para 1: Cornell president David Skorton puts it best: “Sustainability is no longer an elective”.