铁路软席乘车证的颜色为（）。 ["浅绿","浅红","浅蓝","浅黄"]
按照我国国家标准《电磁辐射防护规定》，当监测到超过豁免水平的电磁辐射体使环境电磁辐射水平超过规定的限值时，必须（） ["立即向当地城管机构报告","立即向无线电管理机构报告","尽快采取措施降低辐射水平，同时向环境保护部门报告","立即到环境保护部门缴纳电磁污染治理费"]
塞拉门发生故障时，可不停用，应采取隔离措施，防止旅客掉下车。
Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch？（） ["spanning-tree misconfiguration","speed mismatch configuration","cabling problem","configuration problem"]
公路路基边坡的形式不宜采用（） ["直线形","折线形","抛物线形","台阶形"]
简述教学过程的主要矛盾？
