一下火车,我们便直奔武汉大学,沿着武大正门直走来到樱园,只见这里的樱花已经开了不少了。满眼白色和淡粉色的樱花沿着长长的大道盛开,灿若云海,甚是壮观。有的花朵躲在枝条后面,羞答答的,好像害羞的小姑娘;有的.躲在其它花后面,好像在和我们玩捉迷藏呢;而有的在枝头尽情怒放,就像婴儿般灿烂的笑脸。一阵微风突然吹来,花瓣悄然落下,它们随风飘荡,在天空中漫天飞舞,仿佛片片花瓣从天而降。那是樱花的海洋,樱花的世界。我在花从中翩翩起舞,仿佛自己就是樱花公主。妈妈说,樱花代表中日友好之情,武大美丽的樱花来自日本,现在长在中国富饶的土地上。愿中日友好就像这美丽的友谊之花一样娇艳、甜美。
我爱樱花,爱它的美!
如果一封信写完了,突然又想起遗漏的事情,这时用p.s.表示,再写上遗漏的话即可,要长话短说。通常在信末签名下面几行的左方,应于正文齐头。
注意:在正式的信函中,应避免使用附言。
yesterday i read a book the name of the book is《dr bethune》.
dr bethune was a famous doctor from canada. in 1938 he came to china. at that time china was at war with japan. he worked as a doctor in the chinese army and saved many soldiers’ lives. he worked very hard and became sick. dr bethune died in 1939. he was only 49 years old. he was a good man and we remember him today.
i think the book is very very good!
written by wu qingxiang
mar. 31
how to do research
——reading after a science paper
these days i am busy preparing my dissertation which is about web usage mining . i read some english papers and learnt much from them . and now i want to say something about a paper titled “web usage mining:discovery and applications of usage patterns from web data”.
this is the first english paper i read about dissertation and gave me great help .
this paper is a review about web usage mining. it introduced web usage mining in detail . although it is a little old for it was published in its contents are very useful today . it is organized according to the sequence of web usage mining and the six main parts are introduction which tells me what is web usage mining the sources and abstraction of web data the three steps of web usage mining taxonomy and project survey websift overview privacy issues . the third and fourth parts are most important . it had a list of existing project about web usage mining which i saw many times in other papers but this paper is the one creating this list . besides it has been referred for more then twenty times . as we all know that the higher the referred number is the more important the paper is so i consider this paper to be an important and successful one in this region.
in my opinion the success of this paper dues to three reasons . the first reason is the profound computer knowledge owned by the authors . web usage mining relates to many subjects such as artificial intelligence ontology semantic analysis but the most basic knowledge is computer science . the four authors are all professors of department of computer science and engineering in university of minnesota . for myself i am not major in computer science and i am not very good at computers so i feel a little difficult to understand technologies used in this region.
second they had read a large number of papers before they wrote this paper . there are fifty nine references listed after main contents . “stand on the shoulders of giants” this sentence tell us a truth : one can never successful all by oneself . and what’s more learn from others can save a lot of time and energy especially for us new learner . how to learn from others is a skill all of us should master but learning doesn’t mean copy or plagiary . other people’s knowledge and production is just our foundation upon this foundation we must have our own thoughts and creation. there are many remarks in this paper where referred other’s production.
third the authors had the experience of developing a web usage mining project . they don’t just engage in idle theorizing so their comprehension on this issue is greatly profound. they know what we may meet in a real project development and they know how to resolve them . after reading this paper i also read some other papers written in chinese . some of them are not based on real project and can not give useful resolution . websift is the name of system they developed which can be used to data mining and analysis .
i wrote this article not only because it gave me much help in preparing my dissertation but also because it tells me how to study and how to do research . honesty and preciseness are two essential making a researcher must have . hard-working is the necessary condition leading to success . this is just the beginning of my dissertation i should learn from these four authors both their knowledge and their attitude to study.
低于结束语一至二行,从信纸中间偏右的地方开始,在结束语的正下方,在签完名字的下面还要有用打字机打出的名字,以便识别。职务、职称可打在名字的下面。当然,写给亲朋好友的信,就不必再打了。
在正文下面的一、二行处,从信纸的中间偏右处开始,第一个词开头要大写,句末用逗号。不同的对象,结束语的写法也不同。
(1写给家人、亲戚,用your loving grandfather,lovingly yours,lovingly等;
(2写给熟人、朋友,用yours cordially,yours affectionately等;
(3写业务信函用truely yours(yours truely,faithfully yours(yours faithfully等;
(4对上级、长辈用yours obediently(obediently yours,yours respectfully(respectfully yours等。
其中在一般的社交信中,信内收信人的地址通常省略,但是在公务信函中不能。将收信人的姓名、地址等写在信头日期下方的左角上,要求与对信头的要求一样,不必再写日期。例如:
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