RTK的作业模式有三种,分别是快速静态测量、准动态测量和( )。
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GNSS卫星信号从2万公里高空向地面传输,空中经过电离层、对流层,会产生时延。所以GNSS接受机测量的距离含有误差。( )
A. 对
B. 错
Skim Reading 2 for the questions below.1) What is the relationship between global warming and greenhouse gases?
What role does seawater play in global warming?