题目

细胞是生物体结构和功能的基本单位。下列关于细胞基本共性的描述中，正确的是( ) ①均具有磷脂双分子层与蛋白质构成的膜结构 ②ATP是所有细胞可直接利用的能源物质 ③都具有核糖体作为蛋白质合成的“机器” ④遗传信息均储存在脱氧核糖核酸分子中 ⑤编码氨基酸的密码子基本相同 ⑥所有生物的新陈代谢都是以细胞为单位进行的 A．①②③       B．①④⑤      C．①②③⑤⑥            D．①②③④⑤⑥阅读对话，选择正确的答案。Bobby: I like eggs for breakfast. Sam: I like cereal for breakfast.Bobby: I like to walk to school. Sam: I like to ride my bike to school.Bobby: I like Art at school. Sam: I like Maths at school.Bobby: I like to jump rope. Sam: I like to do chin-ups.Bobby&Sam: We go home together after school1. Bobby likes for breakfast. A. cereal B. eggs2. Sam likes to to school.A. walk B. ride his bike3. Bobby likes at school. A. Art B. Maths4. Sam likes to .A. do chin-ups B. jump rope