第11题: [单项选择]The advanced life forms in nature are all symmetrical, instead of being ______ . A. separated B. disproportionate C. mutable D. imprecise 参考答案:B 答案解析:[解析] 本题的四个选项中,A项separated的意思是“分隔;分割”,B项disproportionate的意思是“不均衡的;不相称的”,如You spend a disproportionate