单选题 The difference between a project and a program is that the ______.
A) program has many projects
B) Project is typically longer than a program
C) program is another name for process
D) both B and C

【正确答案】 A

【答案解析】项目群和项目之间的区别是______。
A) 项目群由很多项目组成
B) 项目一般比项目群时间长
C) 项目群又称为过程
D) B和C