导线上出现冲击电晕后,导线的波阻抗将增大,波速将减小。
A. 对
B. 错
电缆线路的电容比架空线路的电容大得多。
A. 对
B. 错
分布参数电路最根本的特点在于电压和电流不但是时间的函数,而且是位置的函数。
A. 对
B. 错
Dr. Merrywhether thinks Antarctica was part of another continent because[音频][音频]
A. he has done his own research in the area.
B. there is geological evidence of this.
C. it is very close to South America.