题干
The beach is so beautiful that it is worthwhile, I think, _____ for a short holiday.
A：of going
B：to be going
C：your going
D：you to go
答案(点此获取答案解析）
C
A：of going
B：to be going
C：your going
D：you to go
，则cos（
）的值为 （ ）
