满堂模板支撑架四边与中间每隔（）排支架立杆应设置一道纵向剪刀撑。（1.0分）
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针刺方向一般根据经脉循行方向、腧穴分布部位和所要求达到的组织结构等而定。
A. 正确
B. 错误
《党和国家民族政策宣传教育提纲》指出，（）是解决我国民族问题的重大原则。
A. 和谐发展
B. 尊重民族风俗习惯
C. 民族团结
If an edge Label Switch Router （LSR） is properly configured，which three combinations are possible？（）
A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.
B. An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.
C. There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.
D. A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.
E. A received labeled IP packet is forwarded based upon both the label and the IP address.
F. A received labeled packet is forwarded based on the label. After the label is swapped，the newly labeled packet is sent.
以低碳钢为例说明焊接接头在组织、性能上较为薄弱的部位是哪个部位，为什么？
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