天线增益一般用dBi和dBd表示，请问同一天线的dBi比dBd多多少？（）
A.1.25
B.-1.25
C.2.15
D.-2.15
参考答案：C
They didn't ______ the true meaning of what the boss had said, and thus their task almost completely failed. [ ]
A. seize
B. catch
C. take
D. grasp
项目自我总结评价与项目后评价基本一致，区别在于前者是站在( )角度进行总结，后者是站在第三者角度对项目进行分析。
A．业主 B．决策者 C．投资者 D．政府
