头两个字是姓氏的成语

闭关锁国政策 你是如何认识?请结合史实说明 very good,fine,well,much的区 若x表示奇数,则与x相邻的两个奇数 是多少和多少. 若x表示奇数,则与x相邻的两个奇数是.（ ）和（ ） 唐山抗震纪念碑 英语应该用Tangshan Earthquake Memorial Hall or Tangshan Earthquake Memorial Stone been 和 gone"are you still at home now?""no,i've been/gone to Shenzheng for 5 weeks"用哪个我也觉得有时间是延续性的应该用been，但是been同时表示去了又回去了啊，可是句子里表示去了深圳并没有回去那该怎 been gone 的区别急 gone 和been 的区别, gone. been. 的区别 We are very sad and angry to hear that the bad milk powder____ the deaths of over 30 babies.We are very sad and angry to hear that the bad milk powder(劣质奶粉)____ the deaths of over 30 babies.A.made B.did C.brought D.caused为什么不能选A been和gone区别 we are very sad to hear that the bad milk powder c___the deaths of 30 babies 十万火急 After the earthquake,many new houses______in Yushu AreaAfter the earthquake,many new houses______in Yushu AreaA.have built B.is being built C.will build D.will be built 能不能用B呢？ 表语从句的that什么时候可以省略,此处可以省么? We were _____ _______ by many stories in Yushu earthquake. 化学、《氧气的自述》关于化学的小作文,题目为《氧气的自述》 400字左右 有点新意哈、 氧的自述300作文 The f_______ in the south of china washed away many houses The earthquake______（毁坏）many tall buildings and houses 我说To be or not to be,that is the question 他问what do you want to be 想问问他回答的是什么意思 That is really not what I wanna to I had h___ about the bad news.It made me very sad I was very happy ___the news.A see B listen C about D to 氧气的自述 I am going to do what i want to do .中的what 可不可以改成that.为什么呢 中国某地将来几年会发生严重地震吗 They are all____to hear that.A.sad B.sorry C.angry D.happy四选一 毛泽东七律.长征的意思 1.log5(lgx)=12.ln(lnx)=0 I don't know!I am very unhappy!Tall me why? 关于三峡的对偶句最好是名句 I am distressed very sad very unhappy because I am in the slow class fear of other students look do什么意思