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During embryonic development, many animals form a number of temporary structures along their anterior-posterior axis-somites. Cells in somites differentiate into sclerotome, which gives rise to vertebral column, dermatome, which gives rise to dermis, and myotome, which gives rise to skeletal muscle.

脊椎动物在胚胎发育的过程中沿身体前后轴形成一定数目的暂时性结构－体节，随着胚胎的继续发育每个体节分化成为生骨区、生皮区和生肌区，继而生成各种组织。

Methods One hunderd amd ten human subjects (one hunderd and seventy-four eyes) were included in this research. Retinoscopy was made to measure refractive errors, corneal topographer was measured by corneal topography system, Tonometry was used to measure IOP, Ultrasonagraphy was applied to measure anterior chamber length, len thickness and vitreous length respectively, Laser interference biometer was used to measure axial length, Optical coherence tomography was used to measure retina thickness of fovea area. Based on spherical equivalent subjects were divided into four groups: emmetropia group (SE0.50D), low-myopia group (-0.50D≤SE3.00D), moderate myopia group (-3.00D≤SE6.00D) and high myopia group (SE≥-6.00D).

对近视患者及正视者110例（174只眼），主觉加检影验光行屈光检查，采用Humphrey测量角膜平均曲率，非接触式眼内压测量仪测量眼内压；A与B型超声诊断仪测量前房深度、晶状体厚度、玻璃体腔长度及眼轴长度；角膜测厚仪测量中央角膜厚度(CCT，centercornealthickness)；光学相干生物测量仪测量眼轴长度；光学相干断层扫描仪测量黄斑中心视网膜厚度；按等效球镜度数(SE， sphericalequivalent)不同分正视组(SE0.05D)、轻度近视组(-0.50D≤SE3.00D)、中度近视组(-3.00D≤SE＜-6.00D)、高度近视组SE≥-6.00D）。

CT and MRI examinations were taken regularly after operation. Results Among 50 cases of anterior skull-base defects with the longitudinal size from 2cm to 6cm (average 3.5cm )and the transversal size from 2cm to 5cm (average 2.8cm ),the long-term follow-up study which duration ranged from 3 months to 5 years (average 2 years)showed no evidence of CSF leakage and encephalomeningocele.

结果 50例病人的前颅底骨缺损范围为：前后径2～6cm(平均3.5cm)，左右径2～5cm(平均2.8cm)，随访时间为3个月至5年(平均2年)，均未发生脑脊液漏和脑膜脑膨出现象，其中32例病人得到CT或MRI证实。

Body weight is used as the basis for standardization to obtain ground reaction force values and impulse values. The original signal of EMG from Rectus femoris, Biceps femoris long head, Tibialis anterior and Gastrocnemius lateral head is processed by DASYLab 6.0 software to band-pass (10-500Hz), full-wave rectification and low-pass filtering (10Hz), after using the formula root mean square to get the root mean RMS value, divided by total gait cycle as the basis for standardization (100%).

肌电讯号由DASYLab 6.0软体分析股直肌、股二头肌、胫骨前肌、腓肠肌等肌群之原始肌电讯号后，进行10-500Hz的band-pass滤波处理，经全波整流上翻、10 Hz低通率波平滑化处理，再利用均方根（root mean square， RMS）公式运算后，可得均方根振幅，并以步态周期中最大肌电值进行标准化处理。

Although hope earnestly good mood, mood but meeting to decline for the freezing point between the in a flash, cold have to even oneselfs all want to give up oneself's heart, for all that, still want to face strongly oneself, face own life, dream and hope, can't give up for the sake of own dream in spite of anterior road what hardships.

虽然渴望好的心情，心情却会在刹那之间降为冰点，冷得连自己都要放弃自己的心，尽管如此，还是要坚强的面对自己，面对自己的人生、梦想和希望，不管前面的路多么艰辛，为了自己的梦想，都不能放弃。

There was only a limited space in which to gain access to infracallosal DACAA below the PC point to establish proximal control by the anterior interhemispheric approach.

通过前纵裂入路接近PC点下方大脑前动脉远段的胼下动脉瘤并建立有效的控制仅有一有限的操作空间。

To avoid the influence of head position change and to overlap and compare the changing hard tissue under the skull reference system, this work set up a three-dimensional reference frame, which was based on point"S'"(the median point of the upper rear brim of the anterior wall of pituitary fossa), point"Na"and point"Ba"and of which point"S"is origin. UNISIGHT is used to get the original coordinates of all the landmarks in the MPR phase.

为消除矫治前后患者头位变化的影响，使治疗前后变化的上下颌骨和牙列以相对不变的颅底结构作为参照系统进行影像的重叠和对比，本研究通过头颅内的固有标志点S'，N，Ba三点确定了参考平面，建立了以S'点为原点的测量三维坐标系。

The peak of the bulge accorded with the vertical line through the posterior convexity of superior articular surface of atlas. The superimpose rate of the vertical line with the M line were 48% to left and 65% to right. The surplus existed in l～2mm to lateral of M line. The exit point of screw was the median point of vertical line on the anterior cortex of lateral mass. The superimpose rate of BB line the line linked with the

寰椎后结节中点及上关节突后凸尖下的骨质弧形隆起的顶点可作为寰椎椎弓根螺钉进钉点的准确标志，上关节突后凸尖及横突尖可作为寰椎椎弓根进钉点的大体标志；沿寰椎椎弓根轴线进钉较为安全，内倾17°，仰角变异大，出钉参照前结节顶点；椎动脉沟中外的厚度及进钉点处寰椎后弓的高度是寰椎椎弓根螺钉固定的主要限制性因素。

Objective To investigate the nasal and hand carriage state of Staphylococcus aurerus in tar patients with chemotherapy, so as to strengthen nosocomial infection prevention and control Methods One hundred and ninety-nine patients in chemotherapy department from May to November 2008 were investigated, samples of patients' anterior nares and hands within 48 hours of admission and before discharge were taken, SA were isolated and identified, methicillin-resistant Staphylococcus aureus were detected with cefoxitin disk diffusion method.

目的 调查肿瘤化疗患者鼻前庭、手部金黄色葡萄球菌携带状况，以加强医院感染预防与控制。方法对某院2008年5-11月在肿瘤化疗科住院的199例患者于入院48h内及出院前采集鼻前庭和手部标本进行培养、菌种鉴定，并采用K-B纸片扩散法以头孢西丁药敏纸片鉴定耐甲氧西林SA。

Penis residual stump was advanced to anterior portion of the newly restoration penile body as "glans"; To take full layer skin of penis from post-operating patients to observe neurofibril regeneration by light microscopy, electron microscopy and scanning electron microscopy; To determine sensation recovery by physical examination; To check erectile function with NEVA System.

修復术中通过离断阴茎浅、深悬韧带，並继续分离部分海绵体脚，使原固定於耻骨下支的阴茎海绵体充分分离，以使阴茎更为延伸；用含血运的脂肪瓣填塞耻骨前间隙，保证术后远期阴茎的有效长度；选用合適的带血管蒂皮瓣转移覆盖海绵体，塑造更为逼真的龟头和冠状沟样外形。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。