下列费用应计人存货采购成本的是（）。
A.装卸费
B.保险费
C.入库前的整理挑选费
D.采购机构的经费
参考答案：A, B, C
—How much ______the shirt?
—______ thirty yuan. [ ]
A. is; It's
B. are; They're
C. is; They're
D. are; It's
坚持党的领导不动摇，是坚持四项基本原则的核心。( )
