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将一根长19米的钢管,锯成3跟整米数的小钢管,再围成一个三角形,则这3根小钢管中最常的一根至多是多少米. 夏天在盆花下面放冰块有什么现象 笑是很重要是因为什么,不过要是只会笑那是远远不够的是因为什么? 老木匠说的没错笑是很重要的,不过,要是只会笑,那可是远远不够的.这句话的理解是什么? what is important when giving a presentation?是篇演讲~有些提示~可是不懂怎么开展~`哪位高手帮帮忙啊?topic;type of audience ;eye contact with audience; appearance of persenter;control of rhythm;演讲稿~~好急好急~谢谢大 写一篇英文的“what is really important in sports game?"的演讲稿,延时三分钟 what is important when giving a short presentation?the structure voice?eye contact?三方面选一个写一篇一分钟左右的小短文 这里的冠词是不是用错了?偶看到有这样一句话:One Sunday my mother had me take my little young brother to the a trip to the country. 这里的to the a trip 我有点搞不懂,我好像还没看见过 the 后直接加 a 的类型. 有 whili studying,fix your mind on what is really important,or you will__remembring nothinga end up b lead to 请问选哪个?还有一题there were several messages from people,most of___i didn't know,on my answering machine when i got home.a those b w 冠词错误属于那类错误?我有三大类：词汇错误 语法错误 语篇错误.词汇错误又分为形式误选 语义错误； 语法错误又分为词法错误 句法错误 句子错误.但是冠词错误是应该属于那个类别呢? 改正冠词错误1.he is a accountant.2.i have an beautiful umbrella.3.this is an useful tool.4.i have a picture book.a book is on the desk.5.she is the lovely girl. 请大家帮忙翻译一下:(小妹不才呀)Frank Liu just referred you to our company for the position of Technical Support Engineer-8854458, and may have answered questions and assessed your skills on your behalf. We strongly recommend that you re 本人的英语水平不行,“crystal”怎么翻译? 英语翻译A girl may pass easily through the first grades．While boys of her age bring home low marks,the girl may get easily good grades．Girls seem to have“better brains”in school．Why do so few girls become scientists?Why is the most impo catia这个菜单在哪 老木匠说的没错,不过,要是只会笑.那是远远不够的.你理解了什么? 如图,y轴正半轴上有两点A(0,a),B(0,b),其中b>a>0,在x轴正半轴上取一点C,使∠ACB最大,则C的坐标为 一个轮子滚动了3圈用了6秒,则每秒则每秒轮子滚动的角度是? 一个轮子转动了3圈,用了3分钟,则它每秒钟转动的角度是【 】 在化学可逆反应中,分情况比较平均分子量的变化,说明原理.请分为“参与物质为同状态”和“参与物质为不同状态”两种情况说明,希望给予解答,例如：H2+I2=2HICO+H2O=CO2+H2分为M=m/n M=M1*a%+m2*b%两 采矿业属于资本密集型产业吗? 求“诚聘英才”英语翻译 逸动质量 英语翻译Ringo中文意思 基隆山在哪个省 我国台湾省基隆市附近的七星山是活火山,死活山还是休眠火山 9个数按大小顺序排列后,正中间的一个数恰好是这9个数的平均数,如果这些数的总和总和是189,那么这些数据的中位数是多少. 基隆庙口怎么样 为什么胶各板比实木板好 生态木板是不是属于实木板? 生态木板与高分子板哪个好 若a(a-1)-(a^2-b)=-2,则(a^2+b^2)/2-2b的值为___.