题干
阅读短文,选择答案。
Hello! I'm Petty. This is my day. It's six forty. It's time to get up. It's seven o'clock. It's time to go to school. It's eleven thirty. It's time for lunch. It's four twenty. It's time to go home. It's eight thirty. It's time to go to bed.
⑴ 
____
⑵ 
____
⑶ 
____
⑷ 
____
⑸ 
____
A. 
B. 
C. 
D. 
E. 
答案(点此获取答案解析）
C,D,B,E,A
，对任意实数
都有
，且
，则实数
的值等于
B. 
C. 
E. 