题干
—Are those your books?
—____. They are hers.
A：Yes, they are
B：Yes, those are
C：No, they aren't
D：No, those aren't
答案(点此获取答案解析）
C
—Are those your books?
—____. They are hers.
A：Yes, they are
B：Yes, those are
C：No, they aren't
D：No, those aren't
海里，乙正向北逃跑，若巡逻艇的速度是走私船的 
倍，问巡逻艇应沿什么方向前进，才能最快追上走私船，此时，巡逻艇走了