墨子曾批评说：“今王公大臣……至其国家之乱、社稷之危，则不知使能以治之。亲戚则使之，无故富贵，面目佼好则使之。”为改变这一状况，墨子主张(　　)

A“夫爱人者，人必从而爱之；利人者，人必从而利之。”

B“虽在农与工肆之人，有能则举之。高予之爵，重予之禄。”

C“上之所是必皆是之，上之所非必皆非之，天下之百姓，皆上同于天子。”

D“国都不相攻伐，人家不相乱贼”，以兴“天下之利”。

A typical (11) 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 (12) . In this setting, values are data structures of low volume, typically a few computer words or less, which means that an illusion of spacelessness can be realized by having (13) results during expression evaluation stored at the discretion of the language implementation, and effecting parameter (14) and (15) operations through value copying.

A．foreground

B．background

C．screen

D．scenes