求微分方程的通解步骤

What measures should we take to protect the environment on campus? Do you always have a good time on Sunday?[同义句要两句] Do you always have a good time on Sunday?Do you always --- --- on Sunday?Do you always --- --- on Sunday? acknowledgement of complain Unit of Service 翻译 英语翻译the name and address in the state of California of this corporation's initial agent for service of process is :后面是一个地址 for service of process主要是这个不懂! large variety of service 怎么翻译? 根据句意和首字母提示,完成句中所缺的单词1、Where is your mother --------- Oh,she is h ______ in the room 根据句意和单词首字母完成句中所缺的单词Dad sat on the chair w_____ a word .Maybe he was thinking about something important. She ____(全神贯注) on what she loves to do and she never feels tired.一道单词题,从整篇文章中截过来的. 奴隶的奴下一个钱币的币是个什么字 “奴”下面加一个“巾”字,组合成的是什么字? pass the pass the exam等于什么 I thought he_____________(forget) everything. Do everything with you don't forget your lover 要可以全部理解出来的?其实我真的不知道哪个是最佳答案 他被她深爱的男孩甩了 我被我深爱的女孩甩了 我们感觉情况差不多就聊起来了 但是我不知道她 上面奴,下面一个巾,读什么奴巾 上面一个奴下面一个巾是什么字?如题! People who eat a balanced diet should be healthier than （ ） who only eat biscuts and hamburgersA,those B,that,Cthis,D,people正确答案选A,是课本原句,我只是想知道为什么D不对,我是否在语法上有疏漏的地方, Dogs make great pets.make在这里做什么理解? dogs make great pets Dogs make great pets.这句话为什么用make而不是be呢? play with the students还是play with students? It has taken Joe a long time to_____ the fact that he won't be able to go to college. 19.If you hadn’t taken such a long time ...19.If you hadn’t taken such a long time to get dressed,we’d _____ there by now.A.be B.circles C.is circling D.be circling Look after 的词性是什么?（是及物.副词~）KKKKKKKKKKKKKKK What letter(字母）you can see?还有What letter you don't know?均打一个字母 这里的after是副词吗?He arrived after a week.在李玉技的《考研英语大纲词汇考点,用法及解析》上说这里的after是副词.我在牛津中阶英汉双解词典上看到一句：Ian phoned just after six o' clock 说这里的a after与aferward都作副词时的区别 _______ your mother told you that I want to have a conversation with you?a.Had not b.Hasn't C.Is not D.Isn't It is very kind of you to come to us. What to him last week?A.did happen B.is happing C.happened D.happens.选哪个