与昆虫纲特征不符的是() ["身体分头、胸、腹三部分","头部有触角1对、复眼1对、口器1个","胸部有3对足,一般有2对翅","不完全变态发育"]
目前常用的3.5英寸软盘,它的容量一般为()。 ["1.44GB","1.44B","1.44MB","1.44TB"]
以下关于SG7000硬件系统的说法中错误的是()。 ["SBPU板为SG7000的宽带信令处理板,为系统的基本信令处理单元","SBPI板在SG7000系统中负责宽带信令的分发,工作在主备用方式下,每框必须配置一对","CKII板为SG7000系统的时钟板,每套设备只配置一对CKII板,工作在主备用方式下,每块板4路输入,可以对外提供16路8K时钟输出接口","ALUI板是告警板,插在业务框的16槽位,指示系统状态,上报告警信息。其中需要通过单板上的指示灯在完成后插板状态的监控。相应槽位对应的指示灯变红后,表示该槽位的后插板故障或者不在位"]
()is not a standard form of charter-party. ["Gencon","Russwood","Nype","MERSAR"]
Broken valve strips in an operating low pressure, air compressor will cause (). ["an immediate crankcase explosion","oil contamination in the compressed air","a decrease in compressor capacity","no immediate loss of the compressed air capacity"]
什么是渗透势?