世界海军发展史

VB菜单项立save project group 和save project group as有什么区别啊? group project什么意思 怎样区分negative和positive我有个同学老是区分不了negative和positive,有什么记忆方法能很好的区分这两个单词并且不容易忘记的,请大家帮帮忙 has have加现在分词 怎么回答 那些表明态度的词汇,像：positive、negative、optimistic、pessimistic的英语词汇有哪些?全一点,cet-4中的态度题的问题 【英语】do和does的现在分词形式、have和has的现在分词形式.如上 怎么用英文说“乃是”等古文?众所周知的,比如negative=否.positive=然也.之类的“乃是”指的是就是.比如……岳飞,乃是北宋时期的抗金名将.之类的. 正,负一百,英文里分别是这么说吗?positive 100 .negative 100. 今游桃花源,作文要充分发挥战绩的想象力,写出当代桃花源的美好景象：要突出当代桃花源与陶渊明的桃花源的不同之处：写一篇500字以上的记叙文 给桃源人的一封信 作文 度过一个有趣的假期 英语 英文 ：positive是negative的反义词 【作文】渔人又进桃花源桃花源记续写：请你运用想象,以“渔人用进入桃花源”为内容,想想会发生怎样的故事,写下来.网上没有,我查过了,最好在明天中午或明天晚上之前. 作文—— 桃花源记 渔人走进桃花源的眼神 桃花源记(想象作文如果你碰巧遇到刚从桃花源里出来的渔人,你会说什么） 文章先写渔人是如何意外发现桃花源的,然后写-----,-------；最后写渔人离开桃花源的情况 He has seen this play three days ago这个句子哪错了?效率效率! ying zi,even though one string is broken the other three will play on,and this is life! 改被动语态； My mother always tells me not to trust Robert I sent a letter to you last montherThe professor will give us a talk on computer next MondayJoe has returned some dictionaries to the school libraryDo these boys often sing the new pop 根据句意及首字母提示补全单词 1.We'll play a__ Class Three this afternoon.2.He had many c____to give money to schools and charities. this period of time can be roughly divided into three sections,the french era from 1600 to 1760,the british era from 1760 t o1816.4545 CONTROL VALVE SPECIFICATION什么意思? try的单三形式和try的现在分词 try的过去式?急. 含有"如"或"似"的成语,且成语是个比喻 --hurry up!we're all waiting for you--I___(look) for the car key,without it, how can I drive the ca Please give some help__me.A.to B.for C.about D.of 求高手写作文三 要原创一《Changes in life 》二《How to Keep Healthy 》 三《My TV University Life》字数过得去就行 两三百字就OK 本人功底一般 是不是原创还是看的出来的哈 觉得好的我会追加分的谢 ()如( )()成语 自花传粉和异花传粉对花的结构有什么要求 It's typical of him to keep everyboby waiting.请问这里的It’s typical of him怎么理解呢?对于typical of最好有例句~, Hurry up.Don't have your friend waiting for too long.为什么动词用ing? 请你模仿“引人入胜的课堂,热火朝天的劳动,有趣开心的郊游,你追我赶的赛场···的句式想象省略号的内容,