查询词典 group by group

Methods: 774 dentin hypersensitivity teeth of 99 patients were randomly divided into three groups: Group A-Green Or, Group B-Gluma desensitizer, Group C-75% sodium fluoride glycerin. The results of desensitization in 3 groups were evaluated immediately and 1 month after treatment by using a visual analogue scale.

将99例龈下刮冶术所致的774颗根面牙本质过敏症患牙随机分为3组，即极固宁脱敏组、Gluma脱敏剂组和氟化钠甘油脱敏组，分别进行脱敏治疗，观察即刻、1个月疼痛的VAS值。

The depression is one kind of emotion barrier mental disease,is causes by each kind of reason take despondently as a main symptom group of mood disorders or the affective disorders,is a group take the despondent mood self-experience as the central clinical symptom group or the condition.

抑郁症是一种情感障碍性精神疾病，是由各种原因引起的以抑郁为主要症状的一组心境障碍或情感性障碍，是一组以抑郁心境自我体验为中心的临床症状群或状态。

Results:compared with the torsion/orchiectomy group,the biochemical parameters and histological grades in the torsion/detorsion group increased in different degrees, and the prognosis status demonstrated by the number of spermatogenic cell associated with the decreased mean diameter of the seminiferous tubule, there are a worse prognoses in the torsion/detorsion group.

与扭转切除组比较，扭转复位组对侧睾丸的mda、il-6值、病理评分等均有不同程度升高，且1周时生精细胞层数结合精细小管直径所示的预后情况亦较差；而各指标在扭转切除组与假手术组的相比中未示明显差异。

FMD of the brachial artery was examined by high-resolution ultrasonography technique and the inter-ventricular septum thickness, left ventricular posterior wall thicknessand left ventricular diastolic diameter were measured by echo-cardiography technique. The left ventricular mass and LVMI were calculated according to Devereux formulary. According to Framingham heart study, The hypertensive individuals were separated into two groups, left ventricular hypertrophy group and without left ventricular hypertrophy group.

利用高分辨超声技术测定肱动脉血流介导的舒张功能；超声心动图评价受试者的心脏结构功能，测量室间隔厚度(inter-ventricular septum thickness， IVST)、左室后壁厚度(left ventricular posterior wall thickness， LVPWT)及左室舒张末内径(left ventricular diastolic diameter， LVDD)，根据Devereux公式计算(left ventricular mass， LVM)按体表面积得出LVMI，并据Framingham心脏研究的标准将高血压组分为左室肥厚组(24例)与无左室肥厚组(31例)。

China Overseas Construction and Engineering Group, approved by the relevant agencies of Chinese government and directed by the transnational group affiliated to the overseas central administration serials of the Ministry of Commerce of China, is a vital part of the Chinese government overseas development strategy.

中国海外建设工程承包中心（简称COCE原CCEC）是经中国政府相关部门批准，并接受中国商务部海外中心管理系列跨国集团公司的业务指导及管理，是中国政府海外发展战略的重要组成部分。

The results showed that survivin mRNA levels all decreased after the first day of treatment with drugs.It was decreased by 10% in DNR group,40%(P.01) in MIT group,and 25%(P.01) in Awww.yixuelw.cns2O3 group in comparison with control cells.

结果表明：在给予化疗药的第1天3组HL-60细胞中survivin mRNA表达水平全部降低，其中DNR组下降了10%，MIT组下降40%(P.01)，As2O3组下降了25%(P.01)。

All the patients were followed up for months and measured respectively the changes of heart rate, blood puessure and cardiac function by the colur dopper ece.results48 patients completed the treatment.the lvedd, lvesd, heart function and symptoms were improved in both groups while the treatment group was more obvious than the control group（p＜0.05）.the result of hr and bp decreased significantly after treatemt comparatively（p＜0.05）, while the hr in the treatment decreased more obvious than the control group （p＜0.01）,but there was no significant difference in hr（p＞0.05）.conclusionon the basis of routine therapy metoyrolol and shengmaimai capsule can improve the symptoms and heart function significantly in patients with crf and chf.

随访6个月，分别测量治疗前后心率、血压，采用彩色超声心动图测量心功能进行疗效观察。结果48例患者完成研究，两组治疗后左心室舒张末径，左心室收缩末径、，心功能，症状均有改善，但治疗组比对照组明显，两组比较有显著性差异（p＜0.05），两组治疗后血压心率较治疗组明显下降（p＜0.01），两组患者治疗后血压无显著性差异（p＞0.05）而心率有非常显著性差异（p＜0.01）。

Stability of implants was measured by rfa regularly.results there was no significant difference between both groups about stability at all periods and histomorphometry, but isq, bic and ba of experimental group were higher than control group, and isq recovered more quickly in experimental group after loaded.conclusion dual threads design contributes to assure the initial and secondary stability of implants, which is particularly important in poor density bone.

结果 两组种植体在各时期的稳定度差异均无显著性，但在每一时期实验组种植体的稳定度均较对照组高，实验组种植体在负重后稳定度恢复较快，负重3个月后实验组的骨-种植体接触率和种植体周围骨面积均较对照组稍高，但两者差异无显著性。结论双梯形螺纹种植体有利于保证种植体的初期和后期稳定性，应用于低密度骨质优越性会更加明显。

The article by several opposite examples illustrated the former method of finding vector group's maximum linearly independent vector group is imperfect, sometimes even lead to wrong results. The method is that make use of row vector as matrix and then change matrix by performing elementary row operation.

本文通过几个反例说明了在求向量组的极大无关组时，以往普遍使用的以向量为行向量作矩阵，再对矩阵作初等行变换的方法是不完善的，甚至会导致错误的结果。

The elementary action group obtains the benefits of institutional changes by way of founding the secondary action group, using the method of conferring the licence rights. Certainly, the path that the elementary action group recognizes the licence rights is to study in this course. The course of institutional changes.

发动制度变迁的方式——初级行动团体通过次级行动团体来获取制度变迁的收益，其方式就是通过授予次级行动团体特许经营权，当然，在这个过程中初级行动团体是通过学习认识到了特许经营权这种方式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。