yeld

adj.

不育的，（指母牛）不分泌乳汁的；

Semi-submersible rigs: a vector transporting entire marine communities around the world
Some challenges and responses: Higher education in South Africa.
A DEVELOPMENTAL APPROACH TO MATHEMATICS TESTING FOR UNIVERSITY ADMISSIONS AND COURSE PLACEMENT
Educational Histories and Academic Potential: can tests deliver?
Assessment, equity and language of learning : key issues for higher education selection in South Africa /
Assessment, equity and language of learning : key issues for higher education selection in South Africa /
Admissions policies and challenges
Islam and Social Stratification in Northern Nigeria
Land hunger in Kigezi, South West Uganda.
Balance-plow