题目

下列各项中，能体现生物对环境适应的是 A．大树底下好乘凉          B．莲藕的茎和叶柄是中空的     C．千里之堤毁于蚁穴        D．蚯蚓的活动使土壤更加疏松 答案：B______ in her most beautiful skirt, the girl tried to make herself ______ at the party. A. Dressing; noticing  B. Dressing; noticed C. Dressed;noticing    D. Dressed; noticed