$(document).ready(function(){ });

C.

initCookie();

checkDate(1453900040000); recoverAnswer(); updateXmp(); examnow();

var btnObj=document.getElementById(\ btnObj.onclick=show;

initCookie();

checkDate(1453900040000); recoverAnswer(); updateXmp(); examnow();

D.

var btnObj=document.getElementById(\ btnObj.onclick=function(){alert('tarena')};

initCookie();

checkDate(1453900040000); recoverAnswer(); updateXmp(); examnow();

正确答案：A