下列费用中,可计入产品成本的是()
A、产品投资开发费
B、固定资产盘亏损失
C、产品运输费
D、产品原材料支出
参考答案:D
We have made _______great progress in the medical field, but ______ progress we have made is not enough.
A.a; a
B.a; the
C./; the
D./; /
游标卡尺是测量零件的内径,外径,长度,宽度,(),(),或()的常用量具。