The phrase " come up the hard way" in para.7 means to rise in rank, or status in a way that involves difficult or painful experiences.
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Indeed, Grant and Lee had many differences as well as similarities.
A. 对
B. 错
The last and greatest quality of the two men was to turn quickly from war to peace once the fighting was over.
A. 对
B. 错
请同学们完成项目5玩具电子琴实训报告。（模板在课程资源平台）平台
下列选项中，不属于面向对象程序设计的三个特征是（）。
A. 抽象
B. 封装
C. 继承
D. 多态
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