SE序列,两个90°脉冲之间的时间为() A.TE B.TI C.2TI D.T E 发布时间:2018-11-24 08:19 │ 来源:www.tikuol.com 题型:单项选择题 问题: SE序列,两个90°脉冲之间的时间为()A.TEB.TIC.2TID.TE.TR
题型:单项选择题 He’s still not understood by his close friend although he has said sorry to him, _________?A.hasn’t heB.has heC.isn’t heD.is he 查看答案