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Question 33: According to paragraph 3, which of the following is NOT a feature of green buildings aimed at conserving water? A. dual-flush t...

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Question 33: According to paragraph 3, which of the following is NOT a feature of green buildings aimed at conserving water?

        A. dual-flush toilets                                        B. rainwater collection

        C. low-flow faucets                                        D. energy-efficient lighting

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