题目内容

All my friends are on holiday and there is nobody to spend time or to talk .

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I went to the cinema to see that film you talked , but it was boring.

This is the third time I have been Beijing. I really find it interesting.

上述任务中如果将文本框、开启风扇按钮、关闭风扇按钮放到一个网格,需要创建一个(),并通过add方法将其增加到窗口中。

A. 面板
B. 文本框
C. 单选按钮
D. 复选按钮

上述任务中速度文本框并未明确标注,用户并不知道文本框的作用,如果要让界面更加符合用户的交互习惯,应该在文本框前面加一个(),以起到提示的作用。

A. 面板
B. 标签
C. 单选按钮
D. 复选按钮

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