On the frontier, family name and ancestry were more important than what a person could do.
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The American frontiersman is the model of the classic American male hero, who always appeared together with his fellow brothers.
A. 对
B. 错
There are two types of heroic rugged individualists; man against wilderness and man against man.
A. 对
B. 错
During the frontier period, people usually paid a lot of attention to a person's family background and ancestry.
A. 对
B. 错
1.下列哪个叙述是不正确的?
A. 一个应用程序中可能不只一个窗口。
B. JFrame创建的窗口默认是不可见的。
C. 可以将一个窗口添加到另一个容器中。
D. 窗口可以调用setTitle(String s)方法设置窗口的标题。