【单选题】听力原文:W: Hello, 79375828. M: Hello, this is James Clock. May I have a word with Mary? W: Hold on, I'll just see if she's in. M: Ok. W: Sorry, I'm afraid she's not here. Who answered the phone?
【多选题】1927年12月广州起义的著名领导人有( )。
【简答题】关系完整性包括____完整性、____完整性和用户定义的完整性三个方面。
【单选题】下列哪一项与紫绀性先天性心脏病无关( )
【简答题】关系完整性包括实体完整性、 、参照完整性和用户自定义完整性。
【单选题】Speaker A: Hello, may I have an appointment with Doctor Smith? Speaker B: _____
A.
He is really friendly.
B.
Certainly. May I have your name?