BIOPAK240型正压氧气呼吸器各接头采用（）。
A. 连接式
B. 螺扣式
C. 旋转式
D. 压扣式
E. 工具式
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What are two characteristics of GSS?（）
A. It helps verify end-to-end path availability.
B. It provides traffic rerouting in case of disaster.
C. HSRP, GLBP, and VRRP can be clients of GS
D. BGP must be the routing protocol between the distributed data centers.
E. DNS responsiveness is improved by providing centralized domain management.
审美最主要的器官是什么？（）
A. 味觉
B. 触觉
C. 视听
D. 动觉
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