【判断题】在自由路径损耗模型中物体远离发射机接收的信号量与靠近发射机接收的信号量相同。
【单选题】Egypt 's influence in the region has been gradually changing; Saudi Arabia ,an oil rich county, is now the domineering force.
A.
This is a correct sentence.
B.
This sentence is a run-on sentence.
C.
It's a sentence fragment.
D.
This sentence has a comma splice.
【单选题】去掉文本超链接的下划线的方法是 。
A.
a{text-decoration:no underline;}
C.
a{decoration:no underline;}
D.
a{text-decoration:none;}
【单选题】在希腊神话中,基于彩虹女神 Iris的故事,Iris还可以表示()。