四级的

The vessels from the lung parenchyma branched into the pleural superficial vessels, the interlobular vessels and the subpleural microvessels. The subpleural arterioles also could be divided into arteriole, terminal arteriole, precapillary arteriole and capillary in turn. Most subpleural capillary meshes were web-like, and also the small holes and sieve-like meshes occurred in the subpleural microvascular networks. The interlobular blood vessels and the superficial blood vessels were mutual transitional.

从肺实质内穿出的微血管可发出分支至胸膜面浅层、小叶间隔和胸膜下微血管网中；胸膜下微动脉也可分为微动脉、终末微动脉、毛细血管前微动脉和毛细血管四级；胸膜下毛细血管网多数呈网络状，也可见到呈"小孔状"的结构和筛网状的血管网；小叶间隔的微血管与胸膜面浅层的微血管之间可以相互移行。

It has been proved by our previous studies that the central pathway of trigeminal proprioceptive sensation consists of two parallel pathways which are composed of three orders and four orders neurons located between the mesencephalic trigeminal nucleus and the ventral posteromedial nucleus of the thalamus.

本教研室以往的研究结果已经证实，传递三叉神经本体感觉信息的中枢通路为存在于三叉神经中脑核和丘脑腹后内侧核之间的分别由三级和四级神经元组成的两条平行通路。

The result of clusting analysis of 52 counties and cities in northeast Chinawas the division of the risk grade of poplar bacterial canker into 4 districts thatwere seriously occurring district、commonly occurring district、occasionally oc-curring district and unoccurring distric,according to nine weather factors whichwas closely correlated to the bacterial canker.

以与病害密切相关的九项气象因子为指标，对东北地区52个市县进行聚类分析的结果，将东北地区杨树细菌溃疡病的危险等级划分为重发区，常发区，偶发区和不发区四级，这与病害调查的实际情况也是基本一致的。

Article 11Whoever abducts a child for use as a labourer, forces a child to work, employs a child to be engaged in work high above the ground or down in the pit, work involving radioactive, highly poisonous, inflammable or explosive substances or work of the 4th degree labour intensity as stipulated by the State, or employs a child under the age of 14, or causes death or severe injury to a child employed, shall be investigated for criminal liability in accordance with the provisions of the criminal law on the crime of abducting and trafficking in children, the crime of forced labour or other crimes.

第十一条拐骗童工，强迫童工劳动，使用童工从事高空、井下、放射性、高毒、易燃易爆以及国家规定的第四级体力劳动强度的劳动，使用不满14周岁的童工，或者造成童工死亡或者严重伤残的，依照刑法关于拐卖儿童罪、强迫劳动罪或者其他罪的规定，依法追究刑事责任。

Therefore international business communication should be given the particular attention for its specialty and complicities to indicate the stylistic features of this register. Since the corpus-based approach and the computerized analyze in stylistic analysis are more accurate and more scientific, the compared data and the observation results are shown on the basis of comparison between IBC and other registers, which include LOBA, BROWN, CET4, NEC, MEE and MTE. This thesis aims at making a quantitative computerized stylistic analysis on the following aspects: graphetics, layout, punctuation, vocabulary, words of top frequency, word length, diachronic deviation, abbreviation, sentence length, passive voice, cohesive devices, sentence group and discourse analysis.

本文在国际商务英语书信文体特点分析研究的过程中，基于语料库计算机化的科学准确的分析方法，在对商务英语函电文体与普通英语文体，四级英语(CET4)，海事公约文体，航海英语文体和轮机英语比较的基础上，从书写，格式，标点符号，词汇，高频词，词长，词汇变异，缩略语，句长，被动语态，连接词，句群以及篇章模式等方面归纳总结了商务英语书信的文体特点。

Even though adoptees do not know about their natural parents, they do know that their adoptive parents want them, love them and will care for them.

其中的 love 一词是同学们唯一能够听到的信息。借此题，再次强调&听什么，选什么&在文章题中的重要性，尤其是参加四级考试的同学。

Apart from study,I was also an active participator of ,recreational、Scientific and technological activities,I participated in the National Mathematical Contest in Modeling with two of my classmates, and our team Obtained the first prize of Chongqing..during the contest,I was Primarily responsible for the analysis and modeling .last year,I also won Second Prize in the National English Competition ,besides,I got many other honers and prizes,which you can see from my resume.

我是一名将于2010年7月毕业的重庆邮电大学的本科生，所学专业是计算机科学与技术专业。大学四年中，通过我的不懈努力，在各个方面都取得了很好的成绩，计算机基础及专业知识都掌握得很牢实，每学期我都有拿优秀学生奖学金，还拿过两次国家励志奖学金。一次性通过了全国英语四级和六级（549）考试、全国英语口语考试，计算机网络工程师考试。

The analysis indicates the following: the fault activity rate is the most representative parameter;the fault activities in the Huimin subbasin have the long-continued,differential and episodic characteristics;and the activities of faults of lower orde...

结果表明，凹陷内断裂活动具有长期性、差异性和幕式性的复杂特征，低级次断裂活动具有短期性和不确定性的特点。四级控凹断层分别对凹陷的形成和凹陷内局部构造起着不同的作用。

This paper analyses the English words and phrases that vividly embody the structure of compositions and forms them into a comparatively typical frame structure for writing and by telling about the writing approach of each parts(Introduction, Development,Conclusion) of English compositions, it puts forward a shortcut of teaching college English writing.

本文分析了英语中能生动体现文章结构的词语，将其组成一个较有代表性的作文框架结构，并讲述了英语四级统考作文各部份的写作方法，提出了大学英语作文教学的一条捷径。

The content covers the four phases of project management - initiation, development, implementation and finalisation - with a focus on the early planning stages of project management.

项目管理四级证书课程先用2天时间为刚接触项目管理工作的学员提供基础项目管理知识。特别适合那些从事低价值，低风险的项目，或多重的、独立的项目管理。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。