人力资源规划又称为人力资源管理活动的（）
A.纽带
B.前提
C.核心
D.基础
参考答案：A
下列物质属于氧化物的是（ ）
A．H2O
B．O2
C．KMnO4
D．NaOH
The shopkeeper said they _____ the shoes ______.[ ]
A. have sold out; in my size
B. sold out; of my size
C. had sold out; for my size
D. had sold out; in my size
