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![FamousInventionsandTheirInventors X-rayswerediscovere...]( "FamousInventionsandTheirInventors X-rayswerediscovere...")
FamousInventionsandTheirInventors X-rayswerediscovere...
问题详情：FamousInventionsandTheirInventors X-rayswerediscoveredin1895byaGermanprofessor,WilhelmRoentgen.Peopleallovertheworldwereamazedbyhisinvention,theX-raymachine.Thisinventionwassoimportanttha...
