砷盐检查需要的试药
形成砷斑
A.醋酸铅棉花B.溴化汞试纸C.金属锌与盐酸D.碘化钾和酸性氯化亚锡试液
参考答案:B
Acme Corp. purchased a new stamping machine for $100000, paid $10000 for shipping, and paid $ 5000 to have it installed in their plant. Based on an estimated salvage value of $ 25000 and an economic life of six years, the-difference between straight-line depreciation and double-declining balance depreciation in the second year of the asset’s life is closest to:()
A.$15000.
B.$16666.
C.$10556.
10时28分=38分[ ]