首选何方治疗
A.理中丸加减
B.小建中汤加减
C.少腹逐瘀汤加减
D.香苏散合良附丸
E.良附丸合正气天香散
参考答案:B
不能阻滞钠通道的抗心律失常药物是
A.奎尼丁B.利多卡因C.普罗帕酮D.普萘洛尔E.胺碘酮
The owner of a firm gathers some information about her business. This year the firm's revenue is $300000. Cash expenses are $170000. Normal profit is $70000. Economic depreciation is $20000. If the owner could have earned $30000 per year in wages working for another company, the firm's economic profit is closest to:()
A. $10000
B. $30000
C. $60000