I study in High School Affiliated to Southwest University.Th
收藏:
0
点赞数:
0
评论数:
0
1个回答

答案A

此题考查名词的量.确切数量常用数词+hundred/thousand/million/billion+名词的复数形式;不确切数量常用hundreds/thousands/millions/billions + of+名词的复数形式.

点赞数:
0
评论数:
0
关注公众号
一起学习,一起涨知识