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比特彗星（BitComet，简写为"BC"）是一款采用“C ”编程语言为Microsoft Windows平台编写的BitTorrent客户端软件，也可用于HTTP/FTP下载，并可选装e……

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该站通过检测你的显示器的尺寸在屏幕上生成一把真实尺子的图片，使得你无须拥有真正的尺子就可以测量长度。