抬运钢轨时，人员按高矮排齐，分站钢轨两侧，前后两人应错肩，双手紧握轨头举至胸前，左侧人员右手换托轨底，左手仍握轨头上肩。右侧人员则相反，在统一口令下同时上肩，行走时步伐要一致，放下时应喊号做换手动作一齐放下。
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个人信用卡是具有下列功能的信用支付工具（）
A. 消费信用
B. 担保
C. 转账结算
D. 存取现金
Compare the features of the Cisco PIN architecture and Cisco validated Designs. Which two of the following statements are making sense?（） (Choose two.)
A. Cisco validated Designs can be implemented quickly without customer input.
B. Cisco is focusing on the PIN architecture as a means to driving integrated networks.
C. The Cisco PIN architecture is a critical mechanism for supporting integrated markets because it can be implemented quickly.
D. The Cisco validated Designs program provides critical mechanisms for supporting integrated markets because the mechanisms can be implemented quickly.
钢管跨越架所使用的钢管，如有（）等情况的不得使用
A. 弯曲严重
B. 磕瘪变形
C. 表面有严重腐蚀
D. 表面有裂纹
E. 脱焊
两交换局间的信令数据链路是由信令终端设备和（）组成。
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