聚己二酸己二醇酯

-Is Jack in the library?-Maybe.I saw him ______-Is Jack in the library?-Maybe.I saw him ______ out with some books just now.A.going.B.go.C.to go.D.went. 英语翻译求翻译, 英语翻译 英语翻译 英语翻译 英语翻译 what would you like to have for lunch,sir --I 'd like some___a the chicken b a chicken cchickens d chic说出原因 黄冈新建小竹楼记 与 岳阳楼记两文都是作者被贬官之后所做,分别表现了作者怎样的态度? It make people believe that ...这句对吗我也想弄清楚是加不加s 关于奉献的四字词语（30个） 《岳阳楼记》 和 《黄冈竹楼记》都是作者辞官之后所作,分别表现了作者怎样的态度? 请问这句话对吗：I heard the news from the radio. I heard the news over the radio.rt how much is/are two pieces of bread用is还是are How many books are there on the desk?分析一下句子结构好吗分析一下句子结构好吗 表达的对吗 鲁迅写的文章《风筝》中： 英语翻译HASTA LUEGO~表面上翻译就是“直到 然后”的意思可是真正的意思呢? I didn't know与I know nothing有什么差别 She didn't know about this bad news a bit.She didn't know about this bad news ____ ____. -Why didn't you tell me the news of the meeting?-I knew nothing about it,or i--you.A,would tellB,had toldC,toldD,would have told答案选D,为什么不能选A? （ ）You didn't listen attentively( ),so now you don't know how to do the homewok.A.after class B.befor class C.in class D.at the class应该选几? I ___to Cape Town .I know nothing about it.A.haven't traveled B.didn't travel C.don't travelD.won't travel.这里选A还是B .为什么? either you or Tom后接is 还是are那either Tom or you 后接IS还是are Either Nana or Tom must bring ___own dictionary here tomorrow.A.one's B.his C.their D.her —Have you heard the good news? —No, what _______? A. is it B. is there C. are they D. are those选什么?为什么?求详 ______do I know about Tom and _______have I heard of him.A.Much;oftenB.Little seldom我需要理由.我个人觉得这两个答案都可以啊 Have you heard of the news about our neighbor ____ was shown on TV?为什么填which LOVE MAKES LIFE BEAUTIFUL Life is like climbing,the scenery beautiful什么意思谁能回答下? yet already just有什么区别如题 谈since,for,ever,already,yet,just,before的用法? BEC中级含金量高吗掂量自己的水平,感觉考高级不太保险但是,又听说,中级考了没用,高级比较有水准谁能告诉我BEC中级的含金量如何,进外企能得到认可吗