Refer to the exhibit diagram and configuration. RTB is summarizing its networks from AS 64100with the aggregate-address command. However， the show ip route command on RTA reveals theRTB individual networks as well as its summary route. Which option would ensure that only thesummary route would appear in the routing table of RTA？（） ["Add a static route with a prefix of 192.168.24.0 255.255.252.0 pointing to the null0 interface","Create a route map permitting only the summary address","Delete the four network statements and leave only the aggregate-address statement in theBGP configuration","Add the keyword summary-only to the aggregate-address command"]
某公司预计的年度赊销收入为6000万元，信用条件是（2／10，1／20，n／60），其变动成本率为65％，资金成本率为8％，收账费用为70万元，坏账损失率为4％。预计占赊销额70％的客户会利用2％的现金折扣，占赊销额10％的客户利用1％的现金折扣。一年按360天计算。要求：计算平均收现期。
铬镍奥氏体不锈钢产生晶间腐蚀的原因是（）。 ["晶体内富镍","晶界贫镍","晶界富铬","晶界贫铬"]
传世文献与出土文献
计算机硬件系统的五个部分是（）、（）、（）、（）和（）。
南施北宋
