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局域网通常使用中继器、集线器、调制解调器、网卡、网桥、交换机、路由器、网关、防火墙等设备连接。()

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进行电子政务中的数据组织时要保证各部门、机构和行业数据的独立性，其之间没有联系。()

利用Yahoo搜索引擎进行分类检索时，也必须输入检索词。()

请填写以下Cisco 6500交换机STP配置命令的描述。
set spantree enable[vlan] (1)
set spantree fwddelay delay[vlan] (2)
set spantree hello interval[vlan] (3)
set spantree maxage agingtime[vlan] (4)
set spantree portcost mod_num／port_num cost (5)

Self-Fulfilling Prophecies
Many prophecies can become self-fulfilling. That is to say, when people make a prediction about themselves or someone they interact with closely, from that moment on they will tend to act in a way that actually elicits the result they were expecting. Precisely because people expect a certain outcome to occur, they will act in a way that fits in with these expectations, and their behaviors will confirm the earlier prejudice. This basic human tendency to act as expected then makes the predicted outcome more likely.