用人单位购买的特种防护用品须经本单位安全管理部门验收，并应按照特种防护用品的使用要求，在使用前对其()进行必要的检查。
A. 外观
B. 规格
C. 防护功能
D. 数量
Which of the following does an income statement reflect？______.
A. Cash inflows minus cash outflows
B. Revenues minus expenses
C. Assets minus liabilities
D. Increase or decrease in owner's equity
The " straight-line " method of depreciation______.
A. allows an equal amount to be charged as depreciation for each year of the expected use of the asset
B. is computed by dividing the adjusted basis of a property by the estimated number of years of remaining useful life
C. assumes that the depreciation of an asset is a uniform. function of time
D. all of the above
对上述患者，骨髓像的表3咖颐是错误的
A. 骨髓增生活跃，以红系增生为主
B. 有核红细胞以中晚幼红细胞为主，胞浆发育落后于胞核
C. 粒系和巨核细胞出现分叶过渡
D. 骨髓中幼稚粒细胞比例不增加
E. 粒红比值降低
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