男性,16岁。因发热,经氯霉素抗感染退热,但查血象WBC 1.2×109/L,中性粒细胞 0.30,淋巴细胞0.70,血小板230×109/L,需用升白细胞药,下列哪项疗效最为确切
A. 维生素B6
B. 碳酸锂
C. 糖皮质激素
D. 重组人粒系集落刺激因子
A study of thunderclouds over the North Atlantic showed that lightning occurred only when the air temperature______.
A. around the cloud was below freezing
B. around the cloud was above freezing
C. about the cloud was lower than the temperature below the cloud
D. of the cloud was above freezing
下列事项中,可能影响企业营业利润的有:()
A. 摊销无形资产
B. 出租无形资产
C. 出售无形资产
D. 计提带息商业汇票利息
E. 计提行政管理部门办公设备折旧
“固定资产”账户期末余额1000 000元,“累计折旧”账户期末余额200000元,则期末固定资产净值应为( )
A. 200 000元
B. 800000元
C. 1 000 000元
D. 1200 000元