[名词解释] 隐睾

膀胱结石多见于哪种年龄的患者，为什么? 下列哪些药物配伍是错误的() ["A．硫喷妥钠与琥珀胆碱","B．硫喷妥钠与哌替啶","C．异丙嗪与哌替啶","D．碳酸氢钠与氢化可的松","E．碳酸氢钠与异丙肾上腺素"] 尿急 常用的麻醉药液化学保存剂有() ["A．还原剂","B．抗氧剂(阻氧化剂)","C．抗氧化增效药","D．干燥剂","E．脱水剂"] 麻醉药液中常用的抗微生物防腐剂包括() ["A．氯丁醇","B．苯甲醇","C．酚(碳酸)","D．氯甲酚","E．对羟苯甲酸酯"] 隐睾