What does the father mean?
A:He wants his daughter to stay at home.
B:He will offer any help to his daughter.
C:He will give the talk for his daughter.
收集你身边熟悉的事物的数据填空:
(1)你班有____ 名学生,其中男生____ 名,女生____ 名;
(2)你的体重约为____ 干克,身高约为____ 厘米;
(3)你班的教室约为____ 平方米.
欣赏下面的漫画《堵》,材料说明了( )
基因型为Aa与基因型为Bb的动物体细胞混合,用灭活的病毒处理后,不可能获得下列哪种基因型的细胞 ( )。