期

Three preliminary conclusions could be approached as follows:(1) SST changes were distinctively characteristic of stepwise fluctuations. A warming trend during the last deglaciation was punctuated by a slightly cooling event which corresponded to the Younger Dryas. The Holocene episode could be divided into three phases of warming, continuously high temperature and cooling.(2) Two remarkable cooling records were documented around 4 kaBP and 1.5 kaBP after the megathermal of the Holocene.(3) Comparison between time series of MD05-2904 diatom R SST index and stalagmite δ^18O results from Dongge Cave, Guizhou Province suggested that changes in the East Asian Monsoon climate is synchronous with variations in the SST in the northern SCS since the last deglaciation and they might have a close correlation with each other

结果表明：(1)南海北部15 kaBP以来表层海水温度呈现明显的阶段性波动特点，即末次冰消期气候转暖过程中，12.9~11.5 kaBP前后温度略有下降，与新仙女木事件对应，全新世南海北部气候依次经历了升温期、高温期和降温期3个变化阶段；(2)全新世大暖期鼎盛期结束后，南海北部海水温度阶段下降，两次明显降温分别发生于4 kaBP前后和1.5 kaBP前后；(3) MD05-2904孔硅藻R值时间序列曲线与董哥洞D4石笋δ^18O曲线对比表明，南海北部表层海水温度变化与末次冰消期以来东亚季风强度变化关系较为密切。

ResultsAll dividing stages （leptotene, zygotene, pachytene, diplotene stages and diakinesis） were observed in low power lens and those divi- ding stages increased greatly compared with the routine method.

结果 低倍镜下可见细线期、偶线期、粗线期、双线期、终变期细胞，各期细胞染色体分裂相较常规制片明显增加。

As a common rule,the classical hedging theories and methods calculate the optimal hedging ratio based on a portfolio including a hedged asset and certain hedging instruments,and don\'t consider risky elements of hedging and hedger\'s realistic requirements during the course of hedging.

传统的套期保值理论与方法一般将需要套期保值的资产和特定套期保值工具作为一个投资组合来计算最优套期保值比率，而且一般不考虑套期保值过程中面临的各种风险因素和套期保值者的实际需求。

Based on the analysis of tectonic deformation,extensional unconformity,sedimentary facies and paleogeographical rebuilding of southern Tibet,it is recognized that the extensional movement consists of active extension of Hercynian,Indo-Chinese and Early Yanshan epochs,and passive extension of the Himalayan epoch.

藏南特提斯域内伸展运动和伸展作用非常普遍，根据构造变形分析和伸展不整合、沉积岩相、古地理再造及岩相对比方法，对藏南海西期以来的伸展构造进行了较为系统的厘定，确定了海西期、印支期、早燕山期的主动伸展运动和晚燕山期和喜山期的被动伸展作用，并对这些运动特征进行了探讨。

objective to evaluate early signs of avascular necrosis of femoral head in adult by ct and to guide clinical treatment.methods the cases with suspicious diagnose of anfh were scaned in the both hip joints by x ray and ct to find the early signs of anfh with ct.results early signs of anfh using ct showed that, in 38 femoral heads 31 cases, there were radiate star shape of high density osteosclerosis of the trabeculae in 13 femoral head.twenty five femoral heads showed osteosclerosis and trabeculae structure disappearing and vague,incoordinately low ostedensity area and cyst change.there were fracture under the cartilage and light subsid in 5 cases.the cases in stage ⅰwere given decompression, while the pationtsresul in stageⅱand stageⅲ were given decompression and ostetransplant.conclusion ct results show that the sign of the high osteodensity and low osteodensity and cyst change can disply early anfh.

摘 要］目的：探讨成人股骨头缺血性坏死的早期ct征象并指导临床治疗。方法：对临床疑诊anfh的全部病例均行x线平片及ct检查，分析anfh的早期ct征象。结果：早期anfh的ct表现：31例38个股骨头，其中13个股骨头骨小梁呈放射状高密度的"星状征"，骨小梁境界清楚、锐利，属ⅰ期；25个股骨头表现为骨硬化，骨小梁结构消失、模糊不清，骨密度减低及囊性改变，属ⅱ期；并有5个股骨头在ⅱ期影像学改变基础上出现软骨下骨折及轻微塌陷，属ⅲ期。治疗结果：ⅰ期行钻孔髓内减压术，ⅱ、ⅲ期行钻孔减压植骨术。

Meanwhile, the index futures hedge theory has also get a further development, which evolves from traditional hedge theory, the selectivity hedge theory and modern hedge theories. After analyzing the merits and shortcomings of the three theories, the paper mainly studies four minimum square hedge theory models, which are The traditional static OLS model, VECM model, one variable GARCH(1, 1) model and one variable GJR-GARCH(1, 1, 1) model. Established on September 8th in 2006, China Financial Futures Exchange initiated a new era of our country finance ramification-- index futures, opening a door for the China futures industry.

而股指期货的套期保值理论也随之得到长足发展，历经传统套期保值理论、选择性套期保值理论和现代套期保值理论，本文在分析三大理论优缺点的同时，着重研究现代套期保值理论即最小方差避险理论的四种模型：传统静态OLS模型、VECM模型、单变量GARCH(1，1)模型、单变量GJR—GARCH(1，1，1)模型。2006年9月8日，中国金融期货交易所的成立，掀开了我国金融衍生品种股指期货的新纪元，迎来了中国期货行业发展的机遇期。

Inflorescence differentiation can be divided into 6 phases: primary, rundlet primordium, floret primordium, pistil and stamen primordium, initial reproduction structure and pollen maturation.

根据观察结果，将北柴胡花序分化进程划分为初生期、小伞原基分化期、小花原基分化期、雌雄蕊原基分化期、生殖结构分化始期和花粉粒完熟期6个时期。

We detected that EGF mRNA was expressed sflungly lii the oocyte, and is also found hi gmnulosa cells, the cell fium smaller foflicular expressed stronger than fium bigger one. In the corpus hemonbaglcwn corpus luteurn, lean type and pseudocorpus-luteum, EGF rnRNA was detected,, no distinct difference can be seen in them. The EGF mRNA expressed strongly in fimbria end, ampulla and isthmus of oviduct, in the big follicular stage, ovulation stage, pregnancy stage and spurius pregnancy stage, we can not see any distinct change in them, but hi the medium follicuar stage,it is weaker.

结果发现：猪卵母细胞中EGF的mRNA强烈表达，且小卵泡卵母细胞→中卵泡卵母细胞→大卵泡卵母细胞中，EGF的mRNA表达量有逐渐减少的趋势；猪卵泡的颗粒细胞中有EGF的mRNA表达，小卵泡颗粒细胞→中卵泡颗粒细胞→大卵泡颗粒细胞中，EGF的mRNA表达也有逐渐减少的趋势；猪卵巢中的红体、黄体、白体和假黄体中都有EGF的mRNA表达，看不出几部分的表达量有明显的强弱变化；猪输卵管伞部、壶腹部和峡部，都有EGF的mRNA表达，在大卵泡期，排卵期，孕期和假孕期都强烈表达，各期间看不出明显的强弱变化，中卵泡期表达较弱；猪子宫中EGF的mRNA在大卵泡期，排卵期，孕期和假孕期都强烈表达，看不出表达量的明显变化，而小卵泡期表达量明显减弱。

Combined with research of archaeological time and civilization stages, the physical environment change of Wuhan district during middle and late Neolithic Age is reconstructed in detail, which comes through stages of warm and humid, semi\|warm and semi\|humid, dry and cold, relatively torridity and humid, warm and humid successively.

运用植硅石分析新方法对武汉周边先秦遗址考古土壤进行分析研究，发现其中植硅石含量丰富，且具有一定的组合分带性，结合考古年代与文化期研究，揭示出武汉地区新石器中晚期( 50 0 0 - 2 70 0 a BP)气候环境变化信息，即先后经历了温湿期、温凉期、干冷期、暖湿期、温湿期。

Results Corresponding intracavernosal pressures were recorded as follows:the mean pressure was (17.2±4.3)mmHg in the quiscence,(40.6±6.7)mmHg in the tumescence,(61.2±7.4)mmHg in the early-erection,(82.4±7.5)mmHg in the erection,and (124.2±20.6)mmHg in the rigidity.

结果 勃起各期的阴茎海绵体内压平均值是：疲软期(17.2±4.3)mmHg，膨胀期(40.6±6.7)mmHg，初勃起期(61.2±7.4)mmHg，勃起期(82.4±7.5)mmHg，勃起坚硬期(124.2±20.6)mmHg。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐