document.writeln('乙二醇主力合约涨幅扩大至2%');document.writeln('乙二醇主力合约涨幅扩大至2%');document.writeln('乙二醇主力合约涨幅扩大至2%');document.writeln('乙二醇主力合约涨幅扩大至2%');