c'q

c'qc'q

c'q

1
Wang C Q, Zhu X L. Finite difference time domain method of electromagnetic computation[M]. Beijing: Peking University Press, 1994. 王长清,祝西里。电磁场计算中的时域有限差分法[M]。北京大学出版社,1994。
2
Use of C. Q. D. continued past 1908, and the Titanic's initial distress calls used this older signal. D的用法持续到1908年,泰坦尼克号最初的遇险信号就是用这种古老的方式发出的。
3
c. Q: What scores did you get at college? 你在大学时都能得多少分?