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『资料评论』点击这里发表或查看更多评论 好评率：100.00%差评率：-
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□ 第2题的D选项，Mg单质变C单质，是通过Mg单质在CO2中点燃生成MgO和C单质的。C单质变SO2气体是通过C单质与浓硫酸的反应生成CO2、SO2和水来实现的。chenpingping <2-27 22:39>
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□[好评]第2题的D选项，Mg单质变C单质，是通过Mg单质在CO2中点燃生成MgO和C单质的。C单质变SO2气体是通过C单质与浓硫酸的反应生成CO2、SO2和水来实现的。chenpingping <2-27 22:38>
"; document.write(htxt); function sendhp() { $.get("//www.shenzhou3.com/sendgoodbad.asp", { id: "30372766", gb: "g" }, function(data){ viewpp(data); }); } function viewpp(data) { if(data.substring(0,3)!="err") { var dpsj = data.split(","); var good = parseInt(dpsj[0]); var bad = parseInt(dpsj[1]); $("#hpp").html(GetPercent(good,good+bad)); $("#cpp").html(GetPercent(bad,good+bad)); } else { alert("只有下载过此资料的会员可以发表评价！"); } } function GetPercent(num, total) { num = parseFloat(num); total = parseFloat(total); if (isNaN(num) || isNaN(total)) { return "-"; } return total <= 0 ? "-" : (Math.round(num / total * 10000) / 100.00 + "%"); } function sendcp() { $.get("//www.shenzhou3.com/sendgoodbad.asp", { id: "30372766", gb: "b" }, function(data){ viewpp(data); }); }
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