北太平洋巨型章鱼

北太平洋巨型章鱼是170余种巨型章鱼中的一种。人们曾经误把它们看成为海怪,实际上,它们性格平和,并不像古老传说描述的那样会攻击船只。     

以90后视角写青春之作

我经常收到一些读者投稿,作文前面往往附着自我简介之类的资料,这些文字往往很有灵气,就是家常话也给人一种很亲切的感觉。比如,有个同学爆料她的家庭,说爸爸生意失败,一家人过得很苦,后来爸爸振作精神去跑运输,又出了车祸。妹妹不太听话,吃     

跑进家来的松鼠

我们家的房子紧挨着森林。一只松鼠跑进我们家来,很快就跟我们相熟了。它整天满屋乱跑,在橱柜和架子上跳来跳去,动作灵活得惊人,从来没有碰掉过一样东西。爸爸的书房里,挂着一副从森林里捡来的大鹿角。松鼠常常跳到上面去蹲着,就像蹲在树枝上似的。     

11大周星驰头号接班人 揪出来

周星驰了不得,一个人就能把千千万万男女老少逗得前仰后合稀里哗啦。不过,浩瀚搞笑天地,老是靠一人撑着顶着扛着玩着也实在难为他。偏偏他又喜欢孤身作战,老没下决心培养接班人,将周氏搞笑风采有计划有方向地传播延续下去。我等看在眼里,急在心里,特地为星爷苦心搜罗11位头号接班人,请无厘头掌门人尽早留心考察这些人选,争取在明年此时师徒并肩搞笑,星光DOUBLE灿烂!     

自学单元程序教材介绍:化学键(二)

伸展在晶格内的离子键很强,因此从晶格中移走离子是困难的。由于这个原因,离子型化合物具有较高的熔点和沸点。存在于共价型固体或液体中的分子间的作用力没有这样强(除1～2例外),使分子聚集在一起的作用力布遍于固体中也是不强的。考虑下列的气化热:     

Diversity of Gram negative bacteria antagonistic against major pathogens of rice from rice seed in the tropic environment

INTRODUCTIONRiceseedharborsadozenofplantpathogen icbacteria (Gotoetal.,1 988;Xieetal.,1 998) .Thebacterialpathogenscausearangeofricediseases,someverydestructivewhileothershavenoeffectonricecropgrowth .Inthisstudy ,wefoundalargenumberofbacteriaasso ciatedw…     

Views from the field: program directors' perceptions of teacher education and the education of students who are deaf or hard of hearing

Arandom sample of directors of programs for the deaf in North America were surveyed to get their views about the skills that teacher education programs need to be teaching future teachers of students who are deaf or hard of hearing. The directors were queried about literacy practices, classroom management strategies, and communication strategies used in their programs, and were encouraged to comment freely on the questionnaire items presented to them. Program directors predicted a need for more itinerant and resource teachers. The survey also revealed that programs for the deaf are highly behaviorist (i.e., You do this and you'll get that) in the way they induce students to learn and in how they manage student behavior.     

西德尼.哈里斯漫画

砂秘辱如.诬西德尼.哈里斯漫画@西德尼.哈里斯~~     

我的科学经历

回想起来,在我成长过程中,既有与众不同的地方,也有许多很平凡的地方。在上高中以前,我完全没有机会接触科学,对于科学的作用几乎一无所知。就是上高中以后,我的主要精力