RIP路由协议根据()计算metric参数? ["跳数","可靠性","负载","带宽","延迟","MTU"]
密封填料的技术要求与分类说法错误的是()。 ["自润滑性能良好","不污染介质","功能分:阀门填料、离心泵用填料、往复压缩机用填料等","化学稳定性不高"]
项目的财务评估不包含()。 ["项目投资估算与资金筹措评估","项目基础财务数据评估","流动性效益评估","不确定性评估"]
在交输按钮上,绿色OPEN灯亮表示:(). ["A.活门完全打开","B.活门完全关闭","C.活门处于过渡过程","D.活门不在全关位"]
外真空法的灵敏度比打气检漏法()。 ["高几倍","高几十倍","低几倍","低几十倍"]
哪些因素影响人们坚持体育锻炼?