“数列an为等比数列”是“数列an+an-1为等比数列”的( )
下列关于人体细胞分化、衰老、凋亡和癌变的叙述中，错误的是
将下列图片和句子配对。
① Where are my books? ____ A. I'm from Shanghai.
② Do you like apples? ____ B. No, I don't.
③ Where are you from, John?____ C. They are in your bag.
