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Since 2004, three excavations have been carried out at a late Pleistocene human fossil site of Huanglong Cave in Yunxi C......

Sam and Jesse went to the beach* with Papa*. When Jesse was in the sea， something grabbed（抓住） his toe（脚趾）！Was it a shark*？ ......

Deep， deep in the jungle（丛林）， there is a monkey. His name is Monty. He is four years old and is very naughty （调皮的）. Monty......

A mouse and a lion　　One day a mouse went out to find something to eat. He ran carelessly through some tall grass. He r......

Hello, I’m a tiger. I come from Asia（亚洲）. My fur* is orange and yellow. You can see many black strips（条纹） on my fur. I ......

If you pay attention to the advertisements on TV or in the newspaper, you will find they have changed a lot. Advertiseme......

harm 　　vt. & n. 损害；危害　　harmful adj. 有害的　　be harmful to = do harm to = do sb harm 对……有害　　Fruit juice ......

Owing to exceptional local conditions since the fall of 1937,theroutine excavation at Choukoutien could not be resumed,......

翻译诗学代表着英美现代诗歌的最高成就。伊兹拉·庞德从汉字里学到表意文字的技巧后,成了一位翻译诗人。他在自己的《诗章》里用......

A fossil theropod dinosaur discovered in China is thought to be vegetarian, in sharp contrast with its meat-eating cous......

引言:矫治牙列间隙的正畸方法有很多,临床上正畸医生最担心的往往是牙列间隙错合畸形矫治后的高复发趋势、咬合紊乱,甚至由于缺乏......

替代词主要用于替代前面出现过的名词，以避免重复。比较常见的替代词有 one， the one， ones， the ones， that， those 等。现将其用法说明......

学习英语的方式多种多样，猜谜语学英语就是其中之一，它不仅是学习英语的有效方式，而且还能激发学生学习英语的积极性。现在就请同学们......

The Lion In Love　　　　A lion once fell in love with a beautiful girl, so he went to her parents and asked them to marr......

谎话多种多样，但程度轻重不一。...

1. When the cattle eat grass, it uses its tongue roll the grass into mouth, then chewing and swallowing the grass. (牛吃......

1. be fed up to the back teeth 烦透了 　　extremely irritated and fed up with something or someone 烦透了某人或某事 　　......

This study was conducted to detail tooth loss patterns in older adults with special needs. A total of 491 elderly subjec......

pills　药丸...

一、根据图片信息完成crossword 　　　　二、填单词,使之既能填入方格中又能补全句子 　　1. Can you tell me ________ time?　......

Known as the “true terrestrial tetrapod,” reptiles mainly live on land. However, some reptile groups made a secondary ......

Acute liver failure is a refractory disease and its pro-gnosis, if not treated using liver transplantation, is extremely......

指导老师：赵静...

Gearbox as an important source of noise and vibration, its structure-borne nois e has drawn more and more attentions and......

The multi-impact characteristics and failure mechanism of two kinds of automotive enginechain made in China are studied ......

When the noncircular gear pair is applied to the continuously variable transmission (CVT) with gear, the transmission ra......

According to differential geometry and gear geometry, the equation of meshing for small teeth difference planetary geari......

Do you want to have a dinosaur as a pet？ Ha ha， let’s draw a dinosaur together！...

Look at the funny pictures and read the sentences. You will find it easy to remember（记住） the words！...

我们迎来了新的一年，ABC English Salon又给您带来了寓教于乐的英语游戏。本期会有什么有趣的内容呢？快来尝试一下吧！　　 挑战1： 你能......

导读：爱美之心，人皆有之。除了用漂亮的衣服和绚丽的化妆品打扮自己，美国的中学生们有更多变美的法子！　　Since you’re in middle sc......

笔者以为,有必要对文本再构的一些误区:设计、使用方面进行研究,帮助老师们对文本再构形成正确的认识,从而在不增减学生学习负担的......

【摘要】小学生自理能力的缺乏已引起全社会的关注，在小学英语课堂中合理渗透自理教育，对学生自理能力的培养起到了举足轻重的作用。......

James is at the dentist’s office today because he has a toothache on the right side of his mouth. He bought some medici......

That tube of toothpaste you have sitting by the sink does more than just keep your teeth clean， bright and white. In fact......

江西萍乡杨家湾2号洞是发育在二叠系灰岩中的溶洞,其中充填了晚更新世的黏土和沙砾堆积;自2015年至今已经挖掘6次,出土了万余件哺......

“龟甲是怎样形成的”是个困扰了古生物学家近200年的谜团。最近,中科院古脊椎动物与古人类研究所的李淳等在《自然》杂志发表的论......

一说到美国第一任总统华盛顿，美国民众大多会想到三样东西：一，他是一个伟人；二，从美元纸币上看来，他表情严肃木讷，难看无趣；三，他一直戴着一......

A boy and his mother stood looking at a dentist’s(牙医) show-case(陈列柜).　　“If I had to have false(假的) teeth, mot......

乳牙根管治疗术是治疗乳牙牙髓炎和根尖周炎最常用的方法。有效的根管治疗能防止发生根尖周病或促进根尖周组织愈合，从而保留患牙，避......

This paper reviews some of the nanoindentation research that has been done on teeth and discusses the usefulness of this......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

为了认识和治疗牙齿及口腔颌面部疾病,人们不断研究探索牙齿及口腔颌面部的解剖结构.早在2 000多年前,人们对口腔局部解剖已有所认......

This paper reviews some of the nanoindentation research that has been done on teeth and discusses the usefulness of this......

分析蜗轮的受力,对接触应力、轮齿弯曲应力进行计算及校核,指出失效原因,提出解决办法....

针对有关资料中对以端面模数为标准的渐开线斜齿圆柱齿轮的齿厚计算缺乏介绍的情况,自行推导出以端面为参数的斜齿轮之齿厚计算公......

流量脉动是影响外啮合齿轮泵流量特性的一个重要因素,减小流量脉动对提高外啮合齿轮泵的流量特性是很重要的。采用能量计算法得出......

[目的]研究对RNA丰度值低、硬度大、处理困难的牙齿组织总RNA的提取和纯化技术。[方法]采集10只Hartley豚鼠的切齿和臼齿,分别对其......

目的研究正畸牵引疗法在牙伤口感染发生情况,提出降低伤口感染措施,为进一步提高牙伤口感染治疗效果。方法选取2014年1月-2015年10......