第18题:[单选题] An investment pool is formed to A. manipulate the market by spreading false rumors. B. lower brokerage fees by combining security purchases. C. share investment advice among member investors. D. take advantage of tax breaks introduced by the 1933 and 1934 securities acts. 参考答案:A
第19题: [单项选择]化脓性角膜溃疡进行角膜刮片和培养等实验室检查证实病原菌是丝状菌属,首选的局部治疗药物是() A. 两性霉素B B. 纳他霉素 C. 氟胞嘧啶 D. 咪康唑 E. 氟康唑 参考答案:B 答案解析:这是一道考查真菌性角膜溃疡首治药物方案选择知识点的题目。目前局部使用抗真菌药治疗包括多烯类(如0.25%两性霉素B眼药水、5%纳他霉素)咪唑类(如0.5%咪康唑眼药水)或嘧啶类(如1%氟胞嘧啶眼药水)