题目

如果将新鲜的菠菜在清水中泡10分钟,水不会变绿;但如果将新鲜的菠菜用沸水煮10分钟,则发现水变绿了,这是因为细胞的哪一结构被破坏了( ) A . 细胞壁 B . 细胞膜 C . 细胞质 D . 细胞核 答案:B___________the help ___________my teachers, I made progress ___________all subjects ___________physics.A.Under, from, in, exceptB.With, of, in, exceptC.With, from, on, besidesD.Under, of, in, except for
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