题干
Do you like apples?
A：Yes, I like.
B：No, I'm not.
C：Yes, I do.
答案(点此获取答案解析）
C
Do you like apples?
A：Yes, I like.
B：No, I'm not.
C：Yes, I do.
呼吸道 
肺泡 
血液 
组织细胞．