行最简形矩阵唯一吗

hao ting de ying wen geneng tui jian ji shou hao ting de ying wen ge bu xie xie a ting ge 求大师帮忙分析下do的用法It is often claimed that nuclear energy is something we cannot do without.（97年1月六级阅读真题）请问此处do充当什么成分,怎么从语法上解释呢.还是句子本身有错误啊? 我想知道DO,和Does的用法,具体一点, 分析下面英语句子中do的作用Imaginative works such as novels,plays,films,fairy tales,and legends present a more accurate and meaningful picture of human experience than do factual accounts.这句话中的do是表示强调的么?可以删除 总结一下spend的用法. 总结一下代词的用法代词 有哪些用法,以及考点在哪?代词通常会被怎样考? 是have enough patient还是have enough patience My grandpa stayed there for twenty years.(就划线部分提问）划线部分为for twenty years 用Excel做居民用水统计表从一九九二年开始,每年五月十五日所在的那一周为“全国城市节水宣传周”.以下是某地4月份居民用水情况,当前水价为5元/吨.单位 \x05\x05住户人口\x05用水量(吨)\x05应 놓은 산물;什么意思 우리말 잘하는거같은데 do 有几种用法 ( )camping site(填入适当的介词) 부부 일심동체 谁有现实中的道德经 城市将没有工厂 英语对一个勤奋的孩子来说,一整天看电视似乎不可能我相信你能够提高你的生活我不相信机器人能够做与人类相同的事情英语翻译! ec site怎么读 He is jackie chan改为同义句 土星耳环有什么含义?希望能详细点. 几个戒指分别是水火土星木星的动画片 The people are really ( )1 relaxing 2 relaxed 怎么区分这两个? 木星和土星在星象里分别有什么含义 Do you think there___no students at schools in the future?\ A.is gonig to be B.wil be He started on Sunday and arrived in Bejing()two days.括号里面是after还是in？in可以在过去式里用，表示两天之内，为什么是after？ 选择：After driving for thirty miles,she suddenly……After driving for thirty miles,she suddenly realized that she _____ in the wrong direction.空格处为什么填had been driving?而不可以填was driving? 求一篇英语演讲稿,题目是Are mobile phones necessary for middle school students?五六百字 英语短文《戴着眼镜睡觉》的翻译 After driving for 20 miles,Jackson realized that he __in the wrong direction.A.was driving B.drove C.had been driving D.had driven为什么不选D? Suddenly he hears someone running after “长征组诗朗诵会”活动的开场白! PICTURE译成汉语是何意picture这个单词译成汉语是什么意思? 关于我是一名六年级小学生的600字作文截止到4月7日晚上9点前