具缓泻而不伤气，逐瘀而不败正之功，用于年老、体弱及久病患者的大黄炮制品种为
A.酒大黄
B.熟大黄
C.大黄炭
D.清宁片（由酒和蜜制成）
参考答案：D
架空燃气管道与人行道路路面交叉时的垂直净距不应小于( )m。
A．2.2 B．2.0 C．1.8 D．1.6
A financial analyst could correct the current ratio in which a company uses the LIFO inventory valuation method to the FIFO method by:（）
A. adding the LIFO reserve to the current liabilities.
B. adding the LIFO reserve to the current assets.
C. deducting the LIFO reserve from the current asset.
