The representation theorem with order - extremal points is obtained for compact order - convex sets.研究了序凸集的一些运算性质,得到了紧序凸集的序端点表示定理.Finally, the Bahadur asymptotic efficient est imator is constructed through extremal stati...
Chocolate comes from the cacao tree.巧克力出自可可树。Some coffee and cacao are grown for export.种植的咖啡豆和可可豆有些是为了出口.Wealthy people drank cacao and said it was good for the digestion.富人喝可可,说它对消化有好处....