The problem, of course, is that constantly perusing your phone is freaking rude -- a clear signal that your reception is more important than anything going on in the here and now.
My high school was lucky enough to have a computer science department and last year there was a new courseon digital signal processing.
很幸运，我所在的高中拥有专门的计算机课程，去年他们开设了一门新的关于数字信号传输的课程。
3
According to the characteristics of "signal and system" and "digital signal processing", the MATLAB software was used effectively on the simulation experiment, course design and multimedia teaching.