题干
The hospital is very famous. It _______ in 2001.
A：builds
B：built
C：was built
D：is built
答案(点此获取答案解析）
C
The hospital is very famous. It _______ in 2001.
A：builds
B：built
C：was built
D：is built
的部分图象如图所示，则
的解析式是 ( )