威尔尼克区的功能是

Whenworkersareorganizedintradeunions,employersfindithardtolaythem________.

马克思、恩格斯曾设想向社会主义社会过渡过程中变革所有制的方式有___________。

“德里苏丹国”名称解释

Thewealthofacountryshouldbemeasured________thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanproduce.