有机合成与推断
来源:学生作业帮 编辑:百度作业网作业帮 分类:化学作业 时间:2024/08/17 21:29:54
2013年江苏省高考化学试卷第17题 $(document).ready(function() { $("#mediaplayer_wrapper").css({ "filter":"alpha(opacity=0)", "-moz-opacity":"0", "-khtml-opacity": "0", "opacity": "0" }); //play(); hide_div(); }); var status; var timer; function play(p,id,voicelength){ hide_div(); var voice_file=p; jwplayer("mediaplayer").setup({ flashplayer: "http://static.prcedu.com/js2010/new/v3/player.swf", //image: "", file: voice_file, autoplay:'false', width:0.000001, height:0.00001, //repeat:"list", events: { onTime: function (){ var obj = document.getElementById('mediaplayer'); }, onStop: function (){ hide_div(); }, onPlay: function (){ hide_div(); }, onPause: function (){ hide_div(); }, onReady: function (){ hide_div(); } } }); // status = jwplayer().getState(); jwplayer().setVolume(100); if(status=="PLAYING"){ hide_div(); jwplayer().onPause(); stopbof(id); clearInterval(timer); status="PAUSED"; }else if(status=="PAUSED"){ hide_div(); jwplayer().play(); codeCountDown($("#yptime"+id),voicelength,id); $("#ypstart"+id).hide(); $("#ypstop"+id).show(); $("#ztstop"+id).hide(); $("#ztstart"+id).show(); status="PLAYING"; }else if(status=="IDLE"){ hide_div(); jwplayer().play(); //codeCountDown($("#yptime"+id),voicelength,id); $("#ypstart"+id).hide(); $("#ypstop"+id).show(); $("#ztstop"+id).hide(); $("#ztstart"+id).show(); status="PLAYING"; }else{ hide_div(); jwplayer().play(); status="PLAYING"; $("#ypstart"+id).hide(); $("#ypstop"+id).show(); $("#ztstop"+id).hide(); $("#ztstart"+id).show(); codeCountDown($("#yptime"+id),voicelength,id); /*var initial=voicelength; var n=0; timer=setInterval(function(){ if(voicelength==n){ //jwplayer().onPause(); stopbof(id); status="PAUSED"; clearInterval(timer); $("#yptime"+id).text(initial+"‘’"); }else{ $("#yptime"+id).text(n+"‘’"); n++; } },1000)*/ } } function codeCountDown(obj,num,id){ var initial=num; var n=0; timer=setInterval(function(){ if(num==n){ stopbof(id); clearInterval(obj.timer); obj.text(initial+"‘’"); $("#ypstop"+id).hide(); $("#ypstart"+id).show(); $("#ztstart"+id).hide(); $("#ztstop"+id).show(); }else{ obj.text(n+"‘’"); n++; } },1000); } function hide_div(){ $('#mediaplayer_jwplayer_controlbar_durationText').hide(); $('#mediaplayer_jwplayer_controlbar_muteButton').hide(); $('#mediaplayer_jwplayer_controlbar_volumeSliderProgress').hide(); $('#mediaplayer_jwplayer_controlbar_fullscreenButton').hide(); $('#mediaplayer_jwplayer_controlbar_divider4').hide(); $('#mediaplayer_jwplayer_controlbar_volumeSliderRail').hide(); $('#mediaplayer_jwplayer_controlbar_divider3').hide(); $('#mediaplayer_jwplayer_controlbar_playButton').hide(); $('#mediaplayer_jwplayer_controlbar_elapsedText').hide(); $('#mediaplayer_jwplayer_controlbar_timeSliderRail').hide(); $('#mediaplayer_jwplayer_controlbar_divider0').hide(); } setInterval(function(){ var obj = document.getElementById('mediaplayer'); if(obj!=undefined){ $("#mediaplayer").css({ "filter":"alpha(opacity=0)", "-moz-opacity":"0", "-khtml-opacity": "0", "opacity": "0" }); } },1); 学生困惑:
周春秀13-11-29 22:40提问
![](http://img.wesiedu.com/upload/2/ec/2ecd2d56cbd19f94e97f098ecd9f5d2d.gif)
![有机合成与推断](/uploads/image/z/17929468-28-8.jpg?t=%E6%9C%89%E6%9C%BA%E5%90%88%E6%88%90%E4%B8%8E%E6%8E%A8%E6%96%AD)
解题思路: 根据有机物的转化规律分析
解题过程:
![](http://img.wesiedu.com/upload/3/ef/3efde31875020539d8484f9dfd17d35d.jpg)
最终答案:略
解题过程:
![](http://img.wesiedu.com/upload/3/ef/3efde31875020539d8484f9dfd17d35d.jpg)
最终答案:略