水表检定装置按标准器形式可分（） ["容积式和称量式","容积式和标准表式","称量式和标准表式","容积式、称量式和标准表式"]
When you decide on Campus QoS Design elements, which two statements correctly identify considerations to be taken into account?（） [" Voice needs to be assigned to the hardware priority queue."," Voice needs to be assigned to the software priority queue."," Call signaling must have guaranteed bandwidth service."," Strict-priority queuing should be limited to 50 percent of the capacity of the link."]
单向阀的作用是什么？
谶纬
学校对故意损害公物的学生，可以责令照价赔偿，并给予一定数额的罚款。（）
建设创新型国家的意义何在?历史经验可以给我们提供哪些启示？结合我国创新型国家建设中所存在的问题和挑战，讨论如何改进我国国家创新体系。
