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【多选题】
下面关于类和对象的说法中正确的有 ( )A.
类是对象的类型，它封装了数据和操作
B.
类是对象的集合，对象是类的实例
C.
一个类的对象只有一个
D.
一个对象必属于某个类
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反馈参考答案：
举一反三
【简答题】I don't think the film is worth__________.
【单选题】— Have you watched the film “Avatar”? — Not yet. But I the film is worth watching.
A.
am told
B.
was told
C.
have told
D.
have been told
【单选题】The native Canadians lived in ________ with nature, for they respected nature as a provider of life.
A.
acquaintance
B.
harmony
C.
contact
D.
coordination
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