高校职业道德规定了教师处理个人利益与集体利益、（）的道德原则。
A. 社会利益
B. 国家利益
C. 家庭利益
D. 学校利益
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Which three of these statements about PPPoE are true？（）
A. PPPoE can provide a host with access to a destination over Ethernet. You can have only one PPPoE session per PVC
B. You must install PPPoE client software on all hosts that connect to the Ethernet segment. This means that the access provider must maintain a CPE
C. You cannot use PPPoE with Cisco Service Selection Gateway
D. PPPoE implementation is susceptible to broadcast storms and possible denial-of-service attacks
E. Per-session accounting is possible， which allows the service provider to charge the subscriber based on session time for various services offered. The service provider can also require a minimum access charge
在向社会主义过渡进程中，党创造了一系列适合中国特点的（）形式。
A. 建设
B. 改造
C. 过渡
()扶梯控制系统包括主电路，控制电路，整流稳压电路，保护电路四大部分。
A. 正确
B. 错误
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