Internet使用（）作为通信协议，所以必须安装其协议并将其绑定到“拨号网络适配器”。
A. TCP/IP
B. OSI/RM
C. PPP
D. SLIP
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你知道龙虾体内的血是什么颜色的吗？（）
A. 白色
B. 红色
C. 褐色
D. 蓝色
Which statements are true about EIGRP successor routes? （）
A successor route is used by EIGRP to forward traffic to a destination.
B. Successor routes are saved in the topology table to be used if the primary route fails.
C. Successor routes are flagged as "active" in the routing table.
D. A successor route may be backed up by a feasible successor route.
E. Successor routes are stored in the neighbor table following the discovery process.
当转子停稳后，向轴瓦供油不得少于（）分钟，待轴瓦的温度降到40℃以下停辅助油泵。
A. 30min
B. 40min
C. 60min
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