健康保险费率的计算以()为基础。
A.死亡率和伤残率
B.保险金额损失率
C.费用率
D.疾病(伤残)持续时间
参考答案:B
Which of the following is a characteristic of perfect competition()
A. There are a few sellers.
B. The products of different firms are sold at different prices.
C. There are no barriers to entry into the market.
1946年8月,毛 * * 同志在同美国记者谈话时提出的著名论断是( )。
A.枪杆子里面出 * * B.星星之火可以燎原C.一切反动派都是纸老虎 D.将革命进行到底