利用模拟信道传输数字信号的方法叫做( )
A.频带传输
B.宽带传输
C.基带传输
D.窄带传输
参考答案:A
I had hoped to get to the meeting, but I found at the last minute that I couldn’t ________ it.
A.try
B.meet
C.get
D.make
意识障碍伴瞳孔缩小的是
A.有机磷杀虫剂中毒
B.乙醇中毒
C.氯化物中毒
D.巴比妥类中毒
E.吗啡中毒