明渠均匀流可能发生在逆坡渠道中。（）
气管切开伤口换药后的操作不正确的是：（） ["检查气管切开套管位置","检查气囊压力","检查固定带松紧度","告知患者换药目的","观察无菌纱布敷料覆盖伤口情况"]
Controlling costs that are associated with network issues, keeping unexpected problems from affecting productivity, and achieving business goals are characteristics of which cisco offering?（） ["cisco SMARTnet service","cisco captial financing","cisco smart business roadmap","cisco network optimization service"]
试述商业银行的资产负债比例管理的主要含义、指标及其对银行的影响。
在混凝土建筑物和土石坝的接触面上有可能发生（）渗流破坏。 ["流土","接触流土","管涌","接触冲刷"]
水资源费与水费有何联系与区别？
