Selina今天在QQ上遇到了 Martin，下面是他们的聊天记录.
Selina: Hi，Martin! Nice to meet you again!
Martin: Hi, Selina! When do you usually log on QQ?
Selina: I usually log on QQ at six o'clock in the afternoon. What about you?
Martin: I usually log on QQ when I get home.
Selina: Really? Do you have homework after school?
Martin: Yes, but I can do my homework in the evening.
Selina: I usually do my homework at four o'clock. What time do you usually do your homework?
Martin: At around eight o’clock. When do you have dinner?
Selina: I usually have dinner at six thirty. Then I take a shower at around seven thirty. After that, I read some books. I go to bed at nine thirty.
Martin: Oh, I am different (不同的 ) from you. I have dinner at seven o'clock. I usually take a shower before I go to bed at nine o'clock. I go to bed at nine thirty, too.
Selina: We are really different. I have to have dinner now. Bye!
Martin: See you!
请根据以上对活，将Selina与Martin下午放学后的作息时间填入表格中。
Activity | Selina’s timetable (p.m.) | Martin’s timetable (p.m.) |
Log on QQ | 1. ____ | When he gets home |
2. _____ | At four o’clock | At eight o’clock |
Have dinner | At six thirty | 3. ____ |
4. ____ | At seven thirty | At nine o’clock |
Go to bed | At nine thirty | 5. ____ |
上的动点P在x轴上的射影为点M，点A（3，2），则|PA|+|PM|
（ ）