()包含在OFDM符号的尾部重复,主要用来对抗实际环境中的多径干扰,防止造成符号间干扰。
参考答案:循环前缀CP
--------I wonder why Tom was ________ from the post.
--------Don’t you know he can’t ________ that kind of work?
A.moved; match
B.removed; be equal to
C.moved; be suitable for
D.removed; suit
泵扬程不够的原因分析。