我国人才发展的指导方针是：（）。
A.服务发展
B.人才优先
C.以用为本
D.创新机制，整体开发
参考答案：A, B, C, D
Great scientists don't ________ graduate from well-known universities. Some didn't even attend school a year in total.
A．usually
B．necessarily
C．extremely
D．formally
