18.某奶酒以牛奶为主要原料，经微生物发酵酿制而成。为提高发酵效率，需筛选具有乳糖利用率高、乙
醇产量高等特性的酵母菌菌株。下列叙述正确的是
自变量、因变量与对照 · 历年高考生物真题与解析
本页汇总 高考真题检索 的「自变量、因变量与对照」高考生物真题共 1 道，覆盖 2026 年，最常出题型为 多选题；含完整答案与解析。
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