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『资料评论』点击这里发表或查看更多评论 好评率：-差评率：-
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□ 下列说法中正确的是 　　A．所有主族元素的正化合价数，等于它的族序数B．第ⅦA族元素的原子随核电荷数的增加，得电子能力逐渐减弱C．第ⅠA、第ⅡA族元素的阳离子与同周期稀有气体元素的原子具有相同的核外电子排布D．前三周期元素中共有非金属元素12种yog <11-13 22:30>
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□ 下列说法中正确的是 　　A．所有主族元素的正化合价数，等于它的族序数B．第ⅦA族元素的原子随核电荷数的增加，得电子能力逐渐减弱C．第ⅠA、第ⅡA族元素的阳离子与同周期稀有气体元素的原子具有相同的核外电子排布D．前三周期元素中共有非金属元素12种yog <11-13 22:30>
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□ 好spf1234 <9-26 11:42>
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□ 简捷，实用。fzy <9-22 14:52>
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□ 好spf1234 <9-19 11:45>
"; document.write(htxt); function sendhp() { $.get("//www.shenzhou3.com/sendgoodbad.asp", { id: "30297590", 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: "30297590", gb: "b" }, function(data){ viewpp(data); }); }
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