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$(function () {var content = $(".refs").html();var more = true;//限制字符个数var hide = function () {$(".refs").each(fun

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100-28-7 询问对硝基苯异氰酸酯(4-Nitrophenyl isocyanate)CAS: 100-28-7化学式: C7H4N2O3var head = document.getElementsByTag