A ( ) is a feature of the system or a description of something the system is capableof doing in order to fulfill the system’s purpose.

[单选题]A ( ) is a feature of the system or adescription of something the system is

[单选题]A (68) is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.(68) A．planB．requirementC．documentD．Design

[单选题]A．(68)is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.A．planB．requirementC．documentD．Design

[单选题]A． segregated ballast system is a system whereA．all ballast is processed through the oily water separatorB．ballast is taken on and discharged through a separate main deckC．ballast and cargo tanks are separated by cofferdamsD．all ballast lines, tanks,

[单选题]Which of the following system adopts a three-tier classification system:A.R

[名词解释] stomatognathic system

[名词解释] Haversian system

[名词解释] Hypophysealportal system

[单选题]An operating system is ( ).A.the highest layer of softwareB.the lowest laye

[主观题]The Internet is a () system of interconnected computer networks that use the standard Internet protocol suits(TCP/IP) to serve several billion users worldwide。A．global B．regional C．local D．national