下列关于噬菌体侵染细菌的实验叙述错误的是
A：用32P标记的噬菌体侵染细菌时，保温时间过短或过长，都会使上清液放射性含量升高
B：用35S标记的噬菌体侵染细菌后，上清液放射性很高，但不能证明蛋白质不是遗传物质
C：该实验说明了DNA能自我复制并能指导蛋白质的合成
D：该实验的结果与肺炎双球菌转化实验的结果都能说明它们发生了可遗传的变异
My father's day
My father is a teacher. He teaches Chinese. He likes his job and his students. And the students like him too. He goes to work from Monday to Friday. He does not work on Saturday and Sunday. Every day, he gets up at five thirty. At six, he has breakfast. Then he goes running. He goes to school at seven. He has lunch at school. He goes home at five in the afternoon. At six o'clock, he has dinner. He doesn't watch TV. He likes reading（读）books with me. He goes to bed at nine thirty.
亚洲和非洲的分界线是 （ ）
下列各种动物结构与生理功能相适应的叙述，错误的是（ ）
