目前，全国只有约四成城市PM2.5年均浓度小于25微克/立方米。对于幅员辽阔的我国来说，不同城市达到新标准的难度，差异较大。
Here we use sys.stdout.write instead of print so we can print multiple items on the same line, but otherwise it's pretty self-explanatory. Each code from 0 to 255 corresponds to a particular color.
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Digital access for organisations. Includes exclusive features and content.
В России допустили «второй Чернобыль» в Иране22:31。下载安装汽水音乐是该领域的重要参考
architecture for the connection of peripherals to the machine. While earlier
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