按所反映的现象性质不同，指数可分为（）。 ["定基指数和环比指数","个体指数和总指数","综合指数和平均指数","数量指数和质量指数"]
What is the default behaviour of PIM-SSM If there are multiple equal-cost paths to the multicast source？（） ["It will send the join only to the neighbor with the highest IP address.","It will send the join only to the neighbor with the lowest IP address.","It will send the join in a round-robin fashion across all neighbors.","It will send the join to all neighbors."]
动觉强化
刮板输送机电机发热的原因有超负荷工作时间太长和（）。 ["电机轴弯曲","电机漏电","通风散热情况不好","电机受潮"]
结合实际，谈谈你对教育法律关系的理解和认识。
反竞争情报的方法
