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铁路按数量分有（）、双线和多线铁路。

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针对固定人群（小区），一般采用的DM广告单片为（）.

A. 现金抵扣单片
B. 现金返佣单片
C. 酒店宣传单篇

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限制高压电网短路电流水平的措施有哪些？

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you have a DHCP server named server1 and an application server named server2. Both servers run windows server 2008. The DHCP server contains one scope. You need to ensure that server2 always receives the same ip address. Server2 must receive its DNS settings and its wins settings from DHCP. What should you do?（）

A. Create a multicast scope.
B. Assign a static ip address to server2.
Create an exclusion range in the DHCP scope.
D. Create a DHCP reservation in the DHCP scope.

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深圳航空公司的服务理念是，任何时候，自然体贴。

A. 正确
B. 错误

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