辐照处理使宝石（） ["增加颜色","减少颜色","既可增色也可减色","颜色没变化"]
简述水温测定的意义
汉代的基层设置官员，他们的名称一般与（）相对应。 ["下级的官吏","皇宫的等级","社会的等级","上级的官吏"]
下列对于大气圈各圈层的描述正确的有（） ["对流层空气分布均匀，高度分布不均匀","平流层臭氧集中，尘埃很少，透明度高","中层大气在其中进行强烈的化学反应","热层即电离层，大气温度随高度增加"]
Which statement describes the distributed call control model in VoIP networks？（） ["The gateway voice-capable device is configured to support call control directly performing call setup， call maintenance， and call teardown","The gateway voice-capable device has a local call routing table configured through a routing protocol.","The gateway voice-capable device relies on a call agent to support call control.","The gateway voice-capable device relies on a gatekeeper to support call setup， call maintenance， and call teardown."]
人口移动会带来哪些影响？
