若一个二端口电路是互易的,则二端口电路一定不含有受控源。
查看答案
任何一个二端口网络,总是满足互易定理的。
A. 对
B. 错
How long did the meeting between Premier Li andMarcia McNutt last?
A. 30 minutes
B. 70 minutes
C. 60 minutes
D. 45 munites
"Wu Wei" is a central concept of ____________?
A. Confucianism
B. Taoism
C. Buddhism
D. Christianism
Who are the three leading figures ofConfucianism,Taoism andBuddhism?
A. Confucius
B. Lao Zi
C. Shakyamuni
D. Mencius
微信支付 
支付宝支付