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【单选题】
一个类是 在定义类时,将属性声明为private的目的是 实现数据隐藏,以免意外更改 。A.
一组对象的封装
B.
表示一组对象的层次关系
C.
一组对象的实例
D.
—组对象的抽象定义
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【简答题】根据内容，完成下列句子。 Dear Jerry , Please take these things to Alice. She needs them for tomorrow (明天) : her CD player and CD case, backpack, sunglasses (太阳镜), baseball cap, keys and alarm clock. Her DC playe...
【简答题】Dear Mom and Dad, I will go to Alice’s home with her after school, and I will have supper and sleep there. Don’t 21 about me. You know that Alice is one of my 22 friends. If you want to talk with me, ...
【单选题】以下______不符合足值货币的基本特征。
A.
足值货币的内在价值被充分地表现在其外在的使用价值上
B.
足值货币以其内在价值的大小来决定交换的比例
C.
足值货币本身内含着否定自身的基因
D.
在足值货币时代，贵金属货币充当一般等价物会影响经济发展
【简答题】Dear Marry , M y name is Alice Green . I’m ___ girl . I’m four years old . My birthday is March 3 rd . My family is in Beijing now , but my grandparents are still（仍然）in America（美国）. My parents are...
【简答题】简述教育传播效果优化的原则。
【简答题】阅读短文，选择正确答案。 Dear Alice, I just received your letter. And I was very surprised to know that you decided to drop out of school and wanted to be a model (模特). Being a model for a living is not easy. In ...
【简答题】阅读理解 Dear Alice, Thanks for your birthday present(礼物) . I like the storybook very much. I often read it after dinner. There is a zoo near my home. It opens at 8 :00 in the morning every day. There are...
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