档案工作的基本原则是下列哪项()
A.统一领导、分级管理
B.来源原则
C.以防为主,防治结合
参考答案:A
— May I take your order?
— Yes, I’d like a cup of coffee, a hot dog and some salad. What about you, Lisa?
— ____.
A.Me too
B.Same again, please
C.It’s all the same to me
D.The same to me
若式子4x2-2x+5=7,则式子2x2-x+1的值等于( )
A.2
B.3
C.-2
D.4 06