题目

口语交际,从II栏中选出I栏中句子的相应答语。 I (     ) 1. Who’s she?      (     ) 2. What’s this? (     ) 3. Are those your grandparents? (     ) 4. Who are they?  (     ) 5. Nice to meet you. II A. It’s a picture of my friends. B. She’s my cousin. C. They are my aunts. D. Nice to meet you, too. E. Yes, they are. 答案：1B  2A  3E  4D  5C下列函数中函数值有最大值的是（ ）A． B． C． D．