• 2022-06-01
    已知[tex=33.286x1.571]eeD+9X8wUfZloU2SWpb2mHkwYFlH/8/uz2N/jJi1rVWeQNklNumgpHNGvi0nBYWT+00j5V4LFMoijR49xEVNDRCYvwneC0MRJnu2i+2LC4kH6qePtMmzcgGMLwKcwgQDkUJCX27txIV5IYNgRfeWI4dDk4rz+RFyjpBtOAc0sGyhovhHtTmJJkzBLaNWx1uZMQU99RfVjsWOZY1yu+4PC59Q0pAtZh+Rif9JpkMYQINvrfkmVE0DtdLRAL6gn2jl[/tex] 试画出它的波形及频谱图。