题目内容

---Sweetheart. You will never believe this. I just won a car!--_______! I don't believe it!

A. Cheer up
B. Good heavens
C. Good work
D. That's awful

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Jane sometimes complains that her husband is not _______ enough. He never thinks of buying her any gift on special days.

A. acceptable
B. rommantic
C. assertive
D. restless

It _______ great!

A. sound
B. sounds
C. hear
D. hears

简要叙述类图在UML中的意义和重要性。

UML2.0的行为建模视图中，（）刻画一个元素内部的状态迁移，元素可以小到单独的类，也可以大到整个系统。

A. 活动图
B. 顺序图
C. 交互概览图
D. 状态图