Which of the following are types of crosstalk? (Select all that apply)<br>A. near-end crosstalk(NEXT)<br>B. jitter crosstalk(JEXT)<br>C. far end crosstalk(FEXT)<br>D. middle closed-end crosstalk(MCEXT)<br>E. power sum near-end crosstalk(PSNEXT)<br>Answer: A, C, E<br>这题好像都看不懂啊?<br>