从供选择的答案中,选出最确切的解答。 A typical (1) language contains an applicative sub-language
从供选择的答案中,选出最确切的解答。
A typical(1)language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to "spaceless" values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the(2). In this setting, values are data structures of low volume, typically afew computer words or less, which means that an illusion of "spacelessness" can be realized by having(3)results during expression evolution stored at the discretion of the language implementation, and effecting parameter(4)and(5)operations through value copying.