若格兰姆矩阵W(0,t1)为非奇异,则系统完全可控。
参考答案:对
The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good _____[ ]
A. expectation
B. reputation
C. contribution
D. civilization
调试压力传感器时,在无压力作用下,其输出电流应为(),否则利用前置电路的零位电位计予以调节。
A、0mA
B、4mA
C、20mA
D、无穷大