问答题 At higher CO 2 levels, certain types of plants, such as legumes, are expected to benefit more than others, and the nutritional quality of some crops will likely decline.
【正确答案】
【答案解析】二氧化碳水平上升，某些作物，如豆科作物，会比其他作物受益更大，而有些作物的营养质量可能有所下降。