图书馆管理系统+含ER图

Now Your Turn SAMPLE DIALOGA: I’m going to throw a party, and I’ve sent out the invitations to my friends and relatives. B: That’s good. But don’t forget to invite everyone you should invite. A: I think I’ve invited everyone. Do you have anybody in mind? B: Did you invite John? He’s lost his job after recent quarrel with his boss. A: Oh, my gosh! I forgot to invite him! He’ll be sad, thinking we look down on him. He just slipped my mind. B: Well, everyone forgets something sometimes. Don’t worry. It’s not too late. Make a phone call right away. A: Did I forget anybody else that I should incite? B: There’s yet another person you should invite—Julia. She’s just moved to the city and feels lonely. A: Oh, good heavens, I forgot all about her. She’s our new friend. You see, I’m getting forgetful. I think I’m getting old! B: Looks like you are, buddy. You’d better start writing things down if they’re important.

MODEL2 Script

I can’t think of it off the top of my head.

John: Hey, Sue. Do you know what Jack’s home phone number is? Susan: I can’t think of it off the top of my head. I don’t have my address book on me, and I don’t have my mobile phone with me, either. John: That’s too bad! I’ve got to find him now. It’s urgent! If I can’t find him today, I’ll be dead! Susan: You might want to look it up in the phone book. John: I’ve checked already, but it seems that hid phone

number is unlisted. Susan: Maybe it’s under his roommate’s name. John: Well, I guess so. Susan: Well, why don’t you call Jane? She has his phone number. John: I’ve tried, but no one answered! Susan: Maybe call his office and ask his secretary. John: I’ve already tried. She won’t tell me. She says it’s private. Susan: Oh, that’s right. They usually don’t release private information over the phone.5