challenge to

• Network ' s impulse and challenge to teenagers ' psychology
  试论网络对青少年心理的冲击和挑战
• Reflection to the enterprises webs ' challenge to the economics
  回应企业网络对经济学的挑战
• Challenge to develop mining sustainability
  提高矿业持续发展能力的挑战
• The challenge to cpa caused by economic globalization
  经济全球化对我国注册会计师审计的挑战
• Challenge to chinese characters at the info - age
  信息时代对汉字的挑战
• Exploring the outer space is a real challenge to mankind
  探索外层太空对人类是真正的挑战。
• Challenges to outer space law from military space operations
  外空军事行动对外空法带来的挑战
• Asia - pacific growth a challenge to conservation and human development
  亚太区发展保育大考验
• It is also a big challenge to me , " said mr . rahman
  同时对我来说，参与组织这个活动也具有极