2023-04-20
A、 正 确
B、 错 误
参考答案： 正 确
慢性结膜炎的表现通常是结膜轻度潮红，呈鲜红色，分泌物稀薄或呈黏液性。严重时，眼睑肿胀、增温、羞明，结膜充血，疼痛加剧。
2024-01-13 竞赛及其他题库
犬长期不清理外耳道，产生的油性耳垢可保护外耳道。
定期为犬驱虫对于预防外耳道炎有一定的作用。
京巴犬又被称为（）。
药物在管理上可分为（）。
A coal producer has a monopoly on coal.A different monopoly controls the railroad that takes the coal to market.Each monopolist chooses prices to maximize its profits.If the coal monopolist buys the railroad then it will increase its profits by raising t
If a monopsonist pays the wage rate w； then the amount of labor that he can hire is L（w） = Aw， where A is a positive constant.The marginal cost of labor to the monopsonist is：
If a labor market is dominated by a monopolist， it is possible that the imposition of a minimum wage law could INCREASE the amount of employment in that market.。
If a monopolist faces a competitive labor market， it will hire labor up to the point where the price of output times the marginal product of labor equals the wage rate。
For a monopsonist， the more elastic the supply of labor， the greater the difference between the marginal cost of labor and the wage rate.。
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