V . the challenge of regional trade block to regional trade block this question is worried generally . the fifth part discusses it fully and accurately from the eagles as follows : first , the regional trade block challenge to the negotiation course of gatt / wto multilateral trade system ; second , the regional trade block challenge to the most - favored nation treatment rules of gatt / wto multilateral trade system ; third , the regional trade block challenge to the dispute settlement system of gatt / wto multilateral trade system 本文第五部分主要就人们担忧的问题即区域贸易集团对gatt wto多边贸易体制的挑战作了分析，从中可以看出：区域贸易集团的确在gatt wto多边贸易体制的谈判进程、 gatt wto多边贸易体制的最惠国原则、 gatt wto多边贸易体制的争端解决机制三方面对gatt wto多边贸易体制构成了严重挑战。
