Contents
page of the preface .............................................. .................................................. A ...................... .......................... Content .................................................. ....................................... B. Introduction ......... .................................................. .................................................. ........ 1 and the importance of playing smart phone ............................ ............................. second meaning of smartphones ............ .................................................. ...................... 3 advantages and disadvantages of smartphones ................. .................................................. ........... 4 Internet use, and apps on mobile applications ......................... .............................. 5 primary investigators ............... .................................................. ................................... 6 summarizes and discusses the results .......... .................................................. .................................... 7 editorial encyclopedia .......... .................................................. ................................................. 8
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