Which three WAN technologies does the Cisco SR 500 Family support？（） [" ADSL"," SIP trunking"," Fibre Channel"," IPv6"," Fast Ethernet"," T1"]
某企业只生产一种产品，单价200元，单位变动成本150元，固定成本400000元，2003年企业的销售量为10000件。企业按同行业先进的资金利润率预测2004年企业的目标利润基数，同行业先进的资金利润率为20%，预计企业资金占用额为600000元。要求：测算保利量；
Refer to the exhibit. Which of the following statements is true? （） [" BGP NSF awareness is enabled"," SSO for BGP NSF capability is enabled"," BGP graceful restart awareness is enabled"," 10.11.1.187 is configured as an NSF-capable BGP neighbor"]
成人手术前消化系统的准备应包括：（） ["术前12H开始禁食、术前2H禁水","术前12H开始禁食、术前4H禁水","术前24H开始禁食、术前2H禁水","术前24H开始禁食、术前4H禁水","术前24H开始禁食、术前6H禁水"]
短期偿债指标主要有（）等。 ["流动比率","速动比率","现金比率","应收帐款周转率"]
变器差动保护短路绕组匝数越多，则躲过励磁涌流的性能（），而继电器动作时很（）。
