Which three best describe the customer benefits of the Cisco Lifecycle Services approach？（） ["improve the skill sets of its staff members","increase the value of and return on investment for its networks","increase network staff productivity","increase the amount of server room rack space","improve network availability， resiliency， security， and scalability","increase the amount of time required to integrate network change"]
分级授权制度
实验设计的关键是实验配组，实验设计常用符号R表示（）。 ["随机选择分配被试","不做说明，代表等组","代表实验处理","代表观测变量"]
根据《建筑安装工程费用项目组成》（建标［2013］44号）的规定，在施工过程中，承包人完成发包人提出的施工图纸以外的零星项目所需的费用属于（） ["A.计日工 ","B.总承包服务费 ","C.暂列金额 ","D.措施费"]
下列选项中，不属于国际经济法调整对象的是（） ["股票海外发行","产品国际外包","外国旅客来中国旅游","海外遗产继承"]
细晶强化
