购进材料款未付时，这笔未结算的款项应确认为（）
A.负债
B.资产
C.收入
D.利润
参考答案：A
As is known to all, oranges are _______ Vitamin C.
A. rich in B. poor with
C. short of D. good for
简述出纳员发现假币的处理。
