港口项目建设作业流程

我想学一门外语（除英语外的）不知道哪门语言比较吃香?是可以给我建议以下?谁还有没有更好的建议，另外，现在来我国旅游的哪国人比较多一些？我想如果学习一门外语可以在涉外导游 请问除了英语,学国外哪门语言最吃香?我很想知道1 1.Once year(has passed)since we last met.为什么不用have passed?2.Some people think(that)dinasours are still alive today.为什么不用if?这是宾语从句? 英语中 在初中阶段for有多少种用法 除了英语为必学语言之外,如果让你再选修第二门外语,你会选择哪种语言?请说出你的理由! She took a walk yesterday evening too.（改为同义句） she took the guests a___ the stadium yesterday根据首字母填空 It took him 45 minutes ______ his homwork yesterdayA do B doing C to do D did Ten years had passed.I found she had___________A.a few white hairs B.a little white hairC.some white hair D.more fifty hair要求：给出正确答案及理由,并给出其他错误答案错误的理由.详细一点啊!急!老师说是A，说 ten years had elpased,i found she had a few white hair&much white hairs.为什么选第一个? Ten years had passed,I found she had___.A:a little white hair B:a white head of haTen years had passed,I found she had___.A:a little white hair B:a white head of hairs C:a few white hairs D; much white hair请解释所有选项,并特别解释B选 42.The train _________ for twenty minutes.　　A.left B.has left C.is leaving D.has been away43.– How many books _____ they ________?　　-- Five.But they haven’t finished reading even one.A.did…borrow B.had…borrowed C.will…borrow D.do… 52..The train _________ for twenty minutes.　　A.leftB.has leftC.is leavingD.has been away The train is starting in five minutes.和The train is going to start in five minutes一样意思的吗? t was ten minutes before she was found lying in bed _______a book.空格可以填read 她已经离开这里10分钟了 She ( ) ( ) ( ) from here ( ) ten minutes. The weather is about 39%.People feel _____ (comfortable) He is able to axplain the ______(原因) because he was there at that time. We couldn't a___ a new computer because we were very poor at that time. 用所给单词的适当形式填空 ____you______(miss) your parents?Let's_____(go) to the Great Wall now.I am ___(send) an email to my family in China.There are lots of ______(shoe) and _______(clothes) in my room.Is there Chinese______(dance)? 用快速消解法做COD,稀释倍数不同为什么会有比较大的差异?对于同一个水样,稀释10倍和20倍之后,测出的COD值相差几百, 熊不是国家保护动物吗?为什么还有人吃熊掌啊 涣熊是保护动物吗? 北极熊是几级保护动物 英语同义句转换急求It takes him twenty minutes clean the classroom. don't look out of the classroom什么意思?look out不是 小心 谁知道英语句子It takes him twenty minutes clean the classroom.这句话错没错!原句意是他花20分钟打扫教室 I have always loved you,but you do not know 怎样测定活性污泥的增长曲线 促使活性污泥丝状膨胀的环境因素有哪些? 连词成句：1.say,again,don't,and,it,again!2.you,study,miss,do,when,your,abroad,parents,you?3.like,help,to,me,I‘d,you,for,come,to.这三个连词成句咱连啊 急 熊是国家的保护动物吗