题目内容

按调制信号的变化规律去改变载波某些参数的过程叫（）。

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防暴露服应具有耐火性，被火完全包围（），不燃烧或继续熔化。

A. 2s
B. 3s

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以下关于社会思潮对高校教师价值观正面影响的说法不正确的是（）。

A. 开拓教师的眼界和知识
B. 思考和探寻其生存和发展的真谛、形成多元文化理论与思潮并存的格局
C. 促进思想文化交流和学术争论
D. 指导教师的日常实践

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新型SPECT（有定位CT的）是通过下列哪项技术获得功能解剖图像的（）。

A. 定量显像技术
B. 半定量显像技术
C. 平面显像
D. 体外分析
E. 图像融合技术

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A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG. For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）

A. When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.
B. When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.
C. When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.
D. When OSPF is enabled on a working LAN interface on a router, and the router has been elected BD
E. None of the other answers is correct.

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