在调查研究中

the authors performed 3d photographic measurement on the technical moves of zhang wen-xiu as an excellent female hammer thrower in china to get relatively comprehensive body movement data by using two jvc3000 high-speed cameras, screened and analyzed the data by using spss software, and revealed the following findings: in terms of such technical parameters as spinning time, spinning track and spinning speed, there were some problems with this player, which restricted the enhancement of her performance, such as the double leg supporting time was shorter than the single leg supporting time; the angle of inclination of the track of various swirls was somewhat too big; the accelerating process was too short; too much attention was paid to acceleration at the single leg supporting stage; the spinning at the double leg supporting stage was too fast; the sustainable accelerating power was not high.

运动生物力学在乒乓球运动中的应用与。。。对投掷运动员运动损伤的调查分析与预。。。《运动防病治病讲座》健身运动的基本。。。都市运动研究：理论传统的界定和中国。。。《运动防病治病讲座》中年人的健身运。。。体校学生特征性运动自信心和运动动机。。。中国优秀沙滩排球运动员运动损伤流行。。。摘要：采用两台jvc3000高速摄像机对中国女子链球优秀运动员张文秀的技术动作进行三维摄影测量，获得较为全面的人体运动学数据；运用spss软件对数据进行筛选和相关分析，发现该运动员在旋转时间、轨迹和速度等技术参数方面存在着一些制约成绩提高的问题，诸如双支撑时间短于单支撑时间、各圈(尤其第1圈)的轨迹倾角偏大、加速过程太短、单支撑阶段过于强调加速及双支撑阶段旋转过快、持续加速能力不强等。

When researchers from FloridaAtlanticUniversity questioned fellow college students, they found that those who were the youngest in the family desired more sexual partners, but that the first-borns wanted to have children at an earlier stage than later-born siblings.

弗洛里达亚特兰大大学的研究人员在调查他们学校的学生时发现，家庭中的老小渴望拥有较多的性伙伴，而老大希望在较早的年龄段拥有孩子。

Sharpest department with few manpower, is in charge of studying and precisely attacking enemy's important target, can let the enemy be chaotic without our attack, thus Strategy Department is the first and leading team among all the teams.on the basis of accurate market investigation, for obtaing the best market effects, advertisement plans should mark out and implement for commercial advertizing manufacture and issue.

一个人手少但最精锐的部门，在实际战争中专门负责研究和精确打击对方的各重要目标，让对方阵地不攻自乱，因而是所有行动小组的第一梯队和领导组。广告策划是在准确的市场调查基础上，为取得最佳的营销和市场效果，对商业广告的制作、发布以及对广告运动进行科学统筹规划，并监督实施。

For the first time, this study conducted a series of field sampling in multiple locations over several years and demonstrated that the B and Q biotypes first invade areas with high frequency of transport through human movement of plant materials, and then rapidly spread into surrounding areas and displace indigenous genotypes, and in parallel with displacement significant changes in sex ratio occurred in the mixed populations. Crossing experiments demonstrated that in the B. tabaci species complex there are many genetic groups that are completely or nearly completely isolated in reproduction. Apart from behavioural mechanisms, difference in host plant suitability and insecticide susceptibility between whitefly biotypes may also play important roles in the displacement of indigenous whiteflies by alien whiteflies in Zhejiang.

本研究首次以一个地理区域内广泛系统的野外调查数据证实，B型和Q型烟粉虱首先通过花卉苗木调运入侵交通较为发达的地区，然后迅速向周边扩张并取代土著烟粉虱，同时入侵取代过程伴随着混合种群中性比的变化；杂交试验证明烟粉虱复合种内存在多个生殖上隔离或基本隔离的遗传群；B型烟粉虱在浙江省内迅速取代土著烟粉虱，除行为机制外，生物型之间寄主适应性和药剂敏感性等方面的差异也可能在此过程中起着重要作用。

Through the widly use of in-direction selected topic tacic, mainly develop the explore ability while making mistakes. According to investigation and study, it may help develop the self-thinking ability of the students and also the practise level, team work spirit, the sense of responsibility; Many faced and mutually worked evaluatation tactic is a negation for traditionnal evaluatation, it is good for the establish of newly relationship between teachers and students also students themselves, it may help the rising of students'study level and their self-confident, then the perfect of oneself. I hope this text will have some teahing reference for teachers, thus this text would have little help for the implementation of Chinese comprehensiveness studing.

通过非指示性选题策略的应用，突出培养学生在尝试错误的过程中的自主探索能力；通过实施小组合作性调查研究策略，培养学生的独立思考能力，提高实际操作水平，培养合作精神，增强社会责任感；多元互动的评价策略是对传统的评价的否定，有利于建立新型的师生关系和生生关系，使学生在提高学习水平的同时提升自信，逐步完善自我；希望我的论文能为广大一线教师提供教学参考，为语文综合性学习的实施尽微薄之力。

It has become clear that several elements of the 1998 paper by Wakefield et al.

"事实已经很清楚了，这篇1998年由Wakefield为第一作者的文章在几个方面都是不正确的，它违背了早期调查结果，特别是在原始版本中，儿童是顺序选择，文中声称当地伦理伦理委员会"批准了相关研究申请，事实上根本没有这件事。

At least eight studies conducted over the years were unable to demonstrate a clear link between insertive anal *** and a risk for HIV infection among MSM.

至少有8个研究在进行了很多年的调查后仍无法证明在男同性恋中插入方和HIV感染风险由确定的必然联系。

At least eight studies conducted over the years were unable to demonstrate a clear link between insertive anal sex and a risk for HIV infection among MSM.

至少有8个研究在进行了很多年的调查后仍无法证明在男同性恋中插入方和HIV感染风险由确定的必然联系。

Based on the 20 years' investigation and study on Parakmeria yunnanensis, the phenological characteristics, seed bearing characteristics, growth and ecological characteristics of this species were made clear and introduced in this paper.

依据云南拟单性木兰近 2 0年的调查研究结果，从物候特征、树种的结实及种子特性，林木的生长特点，生态习性等方面，介绍了该树种的生物及生态学特性；并从吸收大气污染物的能力，以及在城市环境条件下的生长状况上表述了该树种在城市绿化中的作用。

BACKGROUND: In a two-part clinical study, we investigated theeffect of the administration of fluids "prehydration" on thephysical properties of cerebrospinal fluid and intrathecal spread of local anesthetics.

背景：在这项有两部分组成的临床研究中，我们调查了&预先扩容&对脑脊液的物理性质和局麻药在椎管内分布的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。