题干
Though he ____ the book three times, he hopes to read it again.
A：read
B：reads
C：has read
D：would read
答案(点此获取答案解析）
C
Though he ____ the book three times, he hopes to read it again.
A：read
B：reads
C：has read
D：would read
的渐近线与圆
相切，则
等于（ ）
