环C叫作A在B中的整闭包.The ring C is called the integral closure of A in B.并且生成R的自反闭包 、 对称闭包和传递闭包.And generate Rs reflexive closure, symmetric closure and transitive closure.闭包提供了与每次规则调用相关联的命名 ( 惰性 ) 变量.Closures provide named ( la...
Acid rain is not straightforwardly attributable to the burning of coal.酸雨并非简单地由烧煤造成。Nor is acid rain always, and universally, a bad thing.酸雨也并非在任何情况下都是坏事。This comedy of contemporary manners is told with compassion and ac...