专业技术干部年度考评结果分为()等次。
A、优秀
B、称职
C、基本称职
D、不称职
参考答案:A, B, D
巢元方称遍历关节疼痛者为()。
A.白虎病
B.白虎历节
C.痛风
D.鹤膝风
E.历节风
In a monopoly industry, a firm is most likely to earn an economic profit in:()
A. short-run equilibrium only.
B. long-run equilibrium only.
C. both short-run and long-run equilibrium.