A:植物细胞与动物细胞的区别
B:生物体结构的统一性
C:生物体结构的多样性与统一性
D:细胞为什么要产生新细胞
阅读短文,回答问题。
I'm David. I'm an English boy. Now I'm in Wuhan. It's very hot and sunny here. I wear my new cap and T-shirt. But my shoes are old and small. I think I'll get a new pair of shoes on my birthday.