带有一个正电荷的粒子是()
A.中子
B.α粒子
C.β-粒子
D.γ光子
E.质子
参考答案:E
— Haven't I told you that you should be home earlier?
— Yes, but I home earlier than I usually do.[ ]
A. was coming
B. will come
C. came
D. had come
下列属于项目后评价要完成的咨询任务的是( )。
A.项目的监测评价B.项目绩效管理C.项目目标和持续性的评价D.项目工程技术的总结