Bitcoin cryptocurrency digital money concept. Robot professor explains electronic mining cash financial system. Classroom interior with handwritten quote chalkboard. Blue pink colorful background.

Bitcoin cryptocurrency digital money concept. Robot professor explains electronic mining cash financial system. Classroom interior with handwritten quote chalkboard. Blue pink colorful background.

编号:740170381版权:Besjunior格式:JPG 大图可转换成tiff文件大小约:42.9MB
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JPG大图5000 x 300142.33 cm x 25.41 cm (300dpi)
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JPG小图500 x 30017.64 cm x 10.58 cm (72dpi)

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