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一、Reading Last weekend, my classmates and I went camping. We found a grassy spot beside...

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一、概述 装饰器模式又名包装（Wrapper）模式，顾名思义，就是动态地给一个对象添加一些额外的职责，使用时把所需的功能按正确的顺序串联起来进行控制。就增加功能来说，装饰模式...

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一、Reading After my graduation, I went to Beijing to further my studies. I lived there f...

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一、Reading My girlfriend and I had a wonderful time last right. First, I took her to a c...

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一、Reading Fred's having a party, but he's very embarrassed. There are many people at hi...

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一、Reading Judy is looking for something nice to wear for a job interview. She wants to ...

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一、Reading Amy can't pay this month's rent. She needs some help. Unfortunately, none of ...

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一、Reading There are holes in Dick's shoes. He needs new shoes. Dick doesn't want cheap ...

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一、Reading Jack seldom gets together with his friends. He usually stays at home with his...

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一、Reading My father does the same thing every morning. He gets up at six o'clock. He wa...

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一、Reading This is my English book. It belongs to me. It is mine. That is your English b...

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一、Reading I don't know anyone at this party. There's a strange man. He has a big nose a...

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一、Reading I have two friends. One is short, and the other is tall. My short friend is f...

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一、Reading My hometown is not very modern, but it's beautiful. There is a big park in th...

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一、静态工厂方法是什么？ 常规情况下，一个类需要调用另一个类的变量或方法时，需要先获得被调用类的实例，这时被调用类就需要提供一个公有的构造方法。另外一种，被调用类提供一个可以...

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注：代码环境基于 JDK 1.8 一、SPI 是什么？ SPI(Service Provider Interface)：是一个可以被第三方扩展或实现的 API，它可以用来实现...

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一、Reading There are mice in Mrs. Lee's kitchen! There's a mouse on the kitchen table. T...

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注：基于 jdk 1.8 版本。 一、Enumeration 是什么？ Enumeration 不是一个数据结构，是一个顶级接口，对其他数据数据结构非常重要。其本身只定义了h...

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一、Reading Nobody is at home at the Wangs' house. Mr.Wang is working in his office. Mrs....

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一、Reading There are several foreign student in my class. John is American. He's from th...