分别画出与或非得逻辑表达式

shell相关 请问if [ "${0:0:1}" != "/" ] ; then中${0:0:1}的具体解释我知道${0:0:1}这里代表的是$0是否是"/",想了解这里的机制,0,0,1以及两个冒号分别是怎么用的 If Text1.Text Then 是什么意思啊? IF b=0 AND c0 THEN 是什么意思看不懂 谁能解释一下 O(∩_∩)O谢谢 中国哪个地区化工最先进 has been to和has gone to的区别Kate has never （ ） to school in her early age.应该填been还是gone?为什么? has been to于has gone to的用法及意思?告诉我他们俩的用法及意思和列题! has been to has gone to has been in 的区别、分别举几个例子 条件语句 if odd(i) then odd 代表什么? has been to,has gone to ,has been in 的区别 has been to 和has gone to 的区别如题 小学英语salt的形容词是什么?英语的! 小学英语常考哪些形容词? 用have (has)been 或have（has)gone填空A:Where______Li fei____?B:He______to Hainan Island.A:How long____he I wanna your love中文是?如题 小学英语形容词的比较级怎么教 用have/has been或have/has gone填空 1.My brother______ in the army for nearly three years.2.They______（never） to Yao'an.3.Miss Green________in Beijing since 1997.4.Lucy_______(always)a good student.5.A:Where______Mary_______?B:I think she_____ 用have(has) been 或have(has) gone 填空.A:Where ____________ Li Fei ___________?B:He ____________ to Hainan Island.A:How long ___________ he ___________ there?B:He _____________ there for three days.A:When will he come back ,do you know?B:I’m af 一、 A）用have(has) been 或have(has) gone 填空.A:Where ____________ Li Fei ___________?B:He ____________ to Hainan Island.A:How long ___________ he ___________ there?B:He _____________ there for three days.A:When will he come back ,do you know 用have(has)been或have（has）gone填空 主语+be(is/am/are)+going to+动词原形陈述句：We are going to have a class meeting this afternoon.否定句：一般疑问句：肯定回答：否定回答：特殊疑问句：对WE提问：对have a class meeting提问：对this afternoon提 新2最终话：为何这两个名词做主语BE动词不同?一个是is一个是are?1、the dead [are] said to return to their homes.此句the dead死者 是作为一个整体还是?为何谓语动词用复数are?2、the food [is] laid out for them. 帮我看看这4句英文的语法有没有问题1.a place of mystery and legend of history 2.one fifth of which date from the tangsong dynasty3.it is now a museum and reportedly the best preserved of the only 2 remaining intact gongyuan in all of ch 现在哪里能查上海市科普英语初赛的竞赛结果?对了,还有复赛 常见的英语形容词有哪些?越多越好,如果满意的话, I love you and I want your support I love you and I want your support I love you and I want your support I love you and I want your support i aiso want to treasure your 英语 have been in和has been to有什么区别? has been to,has gone to,has been in的区别 has been to和has been in 的区别 has been to has been in has been on 的区别 求初二上英语语法卷附答案 宏陶陶瓷怎么样? has been in、has been to、has gone to、has been gone的区别（详解）.急知!