........................................1007.1研究的结论.................................................................1007.2研究的不足.................................................................1027.3对策及建议.................................................................1037.3.1 企业层面...............................................................1037.3.2 政府层面...............................................................1057.4未来的展望..................................................................105参考文献........................................................................106附录.............................................................................110攻读硕士学位期间发表的学术论文及取得的相关科研成果.........................114致谢.............................................................................115万方数据