The cost of organic food is higher than () of conventional food because the organic price tag reflects more closely the true cost of growing the food. ( 章节：3 难度：2)_做题室

单项选择题The cost of organic food is higher than () of conventional food because the organic price tag reflects more closely the true cost of growing the food. ( 章节：3 难度：2): A、it; B、one; C、this; D、that

正确答案：D
答案解析：
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