患者女性，26岁。深度烧伤60%，伴呼吸道烧伤2小时。气管造口未遂，立即恢复通气的措

结合半坡、河姆渡聚落的情况，氏族聚落时期的共同特征，找出半坡、河姆渡聚落的差异，说明其原因。

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商业银行的操作风险不是由( )所引发的风险。

A．不完善的内部程序

B．无法满足客户流动性

C．外部事件

D．人员及系统

Tom reads at an average rate of 30 pages per hour, while Jan reads at an average rate of 40 pages per hour. If Tom starts reading a novel at 4: 30, and Jan begins reading an identical copy of the same book at 5: 20, at what time will they be reading the same page

A．9:30

B．9:00

C．8:40

D．7:50

E．(E) 7:00

公证与签证怎样区别？

电梯的电气设备发生燃烧时，应如何处理？