市话局内,用户到用户的局内接续,其衰减频率为800Hz时,应不大于()dB。 A.0 发布时间:2020-01-21 10:35 │ 来源:www.tikuol.com 题型:单项选择题 问题: 市话局内,用户到用户的局内接续,其衰减频率为800Hz时,应不大于()dB。A.0.86B.0.87C.0.88D.0.89
题型:单项选择题 小朋友请你看看下面的课程表,根据课程表填空完成下面的问题。MondayTuesdayWednesdsayThursdayFridayChineseMathEnglishChineseEnglishP. E.EnglishScienceMathMathComputerSocial StudiesMathP. E.ScienceArtChineseMusicMoral EducationComputer例: I like Monday. We have P. E. and art. 1. I like _______________. We have English and social studies. 2. I like _______________ and _______________. We have computer. 3. I like _______________ and _______________. We have math and Chinese. 4. I like _______________ and _______________. We have science. 查看答案
题型:单项选择题 仿照下面画线句的内容和形式,联系前文,续写两句话。 古堡里,若住着魔鬼,那么古堡就是地狱;星辰里,如住着仙子,那么星辰就是天堂。而心园呢? 心有明灯,便不会迷路,心有明灯,就会照出一份必胜的信念;心有小窗,____________________________;心有琴弦,______________________________。 查看答案