This is the last question we'll see in class on the photoelectric effect, so hopefully we can have a very high success rate here to show we are all ready to move on with our lives here.

这是这个课上最后一个关于,光电效应的问题，所以希望,你们能有个高的通过率,来证明我们已经可以继续往下走。

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You can add a pressed button state with CSS by styling the active pseudo-class of the link in question.

你可以通过配置CSS中链接的active伪类来添加一个按下的按钮状态。

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With the ability to upload thatsame lecture to the Internet for pre-class viewing, the question of how to use classroom time isforcing faculty members to engage in a deep examination of pedagogy.

如今，同样的讲座可以提前上传到互联网上供学生课前观看，而如何使用课堂时间的问题将迫使教师们深入研究教学法。

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