在编制工业产品生产成本费用估算时，下列选项中不属于产品制造成本范围的是( )。
A．原材料、燃料、动力
B．福利费
C．销售
D．工资
参考答案：C
—I came to your home yesterday afternoon, but nobody was in.
— Oh, we ________ some shopping in the supermarket.[ ]
A. have done
B. did
C. were doing
D. are doing
有关捻发音的描述正确的有（）
A.高音调、高频率为其特点
B.属于干啰音的一种
C.多在吸气的终末听及
D.老年人在数次深呼吸或咳嗽后消失更有临床意义
E.常见于肺淤血、肺炎早期和肺泡炎
