消渴病气阴两虚证，治疗应首选的方剂是（）。
A.逍遥散
B.天王补心丹
C.龙胆泻肝汤
D.玉女煎
E.七味白术散
参考答案：E
如图所示的试管内封有一定质量的气体，静止时气柱长为L0，大气压强为P0，当试管绕竖直轴以角速度ω在水平面匀速转动时气柱长变为L，其他尺寸如图2-6所示，求转动时的气体压强．（设温度不变，管截面积为S，水银密度为ρ）
An analyst does research about earnings quality. With respect to U. S. GAAP, which of the following is least likely an accounting warning sign for a company（）
A. the use of short useful lives for amortization.
B. a decrease in the last-in, first-out (LIFO) reserve.
C. the use of high discount rates for pension plan liabilities.
