스마트폰은 어떻게 쓰고 있을까?

Page 1 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: 스마트폰은 어떻게 쓰고 있을까?' 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8 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=8' data-page='8' class='cut-thumb lazyload' alt='Page 8: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/8.jpg' width='140' height='200' /> Page 9 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=9' data-page='9' class='cut-thumb lazyload' alt='Page 9: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/9.jpg' width='140' height='200' /> Page 10 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=10' data-page='10' class='cut-thumb lazyload' alt='Page 10: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/10.jpg' width='140' height='200' /> Page 11 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=11' data-page='11' class='cut-thumb lazyload' alt='Page 11: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/11.jpg' width='140' height='200' /> Page 12 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=12' data-page='12' class='cut-thumb lazyload' alt='Page 12: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' 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data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/14.jpg' width='140' height='200' /> Page 15 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=15' data-page='15' class='cut-thumb lazyload' alt='Page 15: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/15.jpg' width='140' height='200' /> Page 16 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=16' data-page='16' class='cut-thumb lazyload' alt='Page 16: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/16.jpg' width='140' height='200' /> Page 17 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=17' data-page='17' class='cut-thumb lazyload' alt='Page 17: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/17.jpg' width='140' height='200' /> Page 18 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=18' data-page='18' class='cut-thumb lazyload' alt='Page 18: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/18.jpg' width='140' height='200' /> Page 19 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=19' data-page='19' class='cut-thumb lazyload' alt='Page 19: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/19.jpg' width='140' height='200' /> Page 20 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=20' data-page='20' class='cut-thumb lazyload' alt='Page 20: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader043.cupdf.com/reader043/viewer/2022032022/55ad84161a28ab741e8b463d/html5/thumbnails/20.jpg' width='140' height='200' /> Page 21 <img data-url='document/-55ad84161a28ab741e8b463d.html?page=21' data-page='21' class='cut-thumb lazyload' alt='Page 21: 스마트폰은 어떻게 쓰고 있을까?' loading='lazy' 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스마트폰은 어떻게 쓰고 있을까?

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