题目

I have a twin sister. When we were babies, my dad always said that we were mirror-image twins (镜像双胞胎),1 nobody would listen. As we were growing up, it became clear that we 2 mirror-image twins. I like to use my right 3 for writing, throwing, etc and my sister likes to use her left hand. We can always finish off each other’s sentences and know what 4 is thinking. As twin sisters, we always 5 when the other is in trouble or hurt. When I was 15 years old, I had to have an 6 on my stomach. When my dad called my 7 from the hospital, she said she had the pain (疼痛) as wel 动物细胞与植物细胞的主要区别在于 [　　] A．没有细胞壁 B．没有细胞膜 C．没有细胞质 D．没有细胞核