明确性

The persistence, existence, stability and global attractivity of periodic solutions of Lotka-Volterra systems are an important direction of mathematical ecology research. It has been an important topic to give a definite criterion of the properties of a complicated ecological system. Many ecologist and mathematician have paid much attention in this field.

生态系统的持久性、周期解的存在性及稳定性、全局吸引性等问题是数学生态学理论中的一个重要研究内容，对上述问题给出明确的判定准则是数学生态学的一个重要课题，历来受到生态学家与数学家的广泛重视。

The clinical application of collagen is based on sciefitific evidence,it is well accepted by the users and good result has been achieved.Thus it is worthwhile for popularization and application in skin cosmesis.

胶原蛋白在美容皮肤科的应用有明确的理论依据，可配合皮肤科的各治疗及护理，有良好的依从性及疗效性，值得推广应用。

the clinical application of collagen is based on sciefitific evidence,it is well accepted by the users and good result has been achieved.thus it is worthwhile for popularization and application in skin cosmesis.

胶原蛋白在美容皮肤科的应用有明确的理论依据，可配合皮肤科的各种治疗及护理，有良好的依从性及疗效性，值得推广应用。

The anatomy relationship of venae hepaticae intermediae and its branches on gallbladder bed were analysed,which could be the reference during the LC.Results:For 112 patients suffered from inatrophic cholecystitis and cholecystolithiasis,whose gallbladders were decoherence directdly from ectoptygma muscular coat close to the gallbladder wall.

结果：对于术前经彩色多普勒超声波检查明确的肝中静脉直接和胆囊床相贴的非萎缩性胆囊炎胆囊结石的102例患者，采用紧靠胆囊壁的浆肌层直接进行剥离；而慢性萎缩性胆囊炎胆囊结石的24例患者，采用胆囊粘膜切除，或者直接开腹手术切除，未发生因损伤胆囊床肝中静脉而大出血。

Libellula and Xiannong 4 are classic durable resistant varieties in Southern Region of Gansu Province where wheat stripe rust is serious. The study was done in order to reveal their seeding resistant characteristics and mechanism.

明确甘肃陇南小麦条锈病常发易变区典型的持久抗病性品种里勃留拉和咸农4号苗期的抗条锈性特点及抗性机制。

Objective To analyze the CT and MRI manifestations of oral carcinoma,and to evaluate the value of imaging technologies in the diagnosis of oral carcinoma,thus to explore the most reasonable imaging method Methods 46 cases with oral carcinoma,proved by surgery and pathology （2 lip tumors,8 carcinomas of the gingival ridge,5 carcinomas of the buccal mucosa,24 tongue carcinomas,5 carcinomas of the floor of the mouth,2 tumors of the hard palate）,were analysed retrospectively32 cases were examined with CT and 14 cases with MRIImaging presentations were compared with surgery and pathology Results Of the 46 cases with oral carcinoma,22 were ulcerative lesion of infiltrative growth,24 were masslike lesion of extruded trowthOf the 32 cases examined with CT scan,27 were detected,5 were missed,the 4 missed cases were confirmed to be superficial ulcers by surgery and pathologyOf the 10 cases with bone destruction examined with CT scan,8 were manifested,2 were missedAnd of the 14 cases with MRI scan,all 14 were detected Conclusion CT and MRI scan are valuable for diagnosis of oral carcinomasThey can manifest the morphology and size of primary tumor,contiguous structures,bone invasion and cervical lymph node metastasisMRI is the optimal imaging method for superficial ulcerative lesion of infiltratibe growth

徐 锋，罗德红，唐威，欧阳汉，周纯武目的分析口腔癌的CT及MRI表现，评价影像检查在口腔癌诊断中的应用价值，探索合理的影像学检查方法。方法回顾性分析经手术及病理证实的口腔癌46例（唇癌2例，牙龈癌8例，颊黏膜癌5例，舌癌24例，口底癌5例，硬腭癌2例），其中32例行CT扫描，14例行MRI扫描，将影像表现与手术所见及病理结果进行对照分析。结果 46例口腔癌中，呈浸润性生长的溃疡型病变22例，外生性生长的肿物型病变24例。CT扫描32例，明确显示病变27例，遗漏病变5例，其中4例为表浅溃疡型病变。CT扫描病例中，10例有骨质侵犯，CT扫描准确评价8例，遗漏2例。MRI扫描14例，均准确评价肿瘤及其与周围结构的关系。结论 CT、MRI对口腔癌原发肿瘤的形态、大小、周围结构侵犯、颈部淋巴结转移的评价有重要价值。对于较小及呈浸润性生长的表浅溃疡型肿瘤，CT扫描尤其是CT平扫难以准确显示，应首选MRI。

Objective To analyze the CT and MRI manifestations of oral carcinoma,and to evaluate the value of imaging technologies in the diagnosis of oral carcinoma,thus to explore the most reasonable imaging method Methods 46 cases with oral carcinoma,proved by surgery and pathology （2 lip tumors,8 carcinomas of the gingival ridge,5 carcinomas of the buccal mucosa,24 tongue carcinomas,5 carcinomas of the floor of the mouth,2 tumors of the hard palate）,were analysed retrospectively32 cases were examined with CT and 14 cases with MRIImaging presentations were compared with surgery and pathology Results Of the 46 cases with oral carcinoma,22 were ulcerative lesion of infiltrative growth,24 were masslike lesion of extruded trowthOf the 32 cases examined with CT scan,27 were detected,5 were missed,the 4 missed cases were confirmed to be superficial ulcers by surgery and pathologyOf the 10 cases with bone destruction examined with CT scan,8 were manifested,2 were missedAnd of the 14 cases with MRI scan,all 14 were detected Conclusion CT and MRI scan are valuable for diagnosis of oral carcinomasThey can manifest the morphology and size of primary tumor,contiguous structures,bone invasion and cervical lymph node metastasisMRI is the optimal imaging method for superficial ulcerative lesion of infiltratibe growth

中华硕博网核心提示：徐锋，罗德红，唐威，欧阳汉，周纯武关键词：口腔肿瘤目的分析口腔癌的CT及MRI表现，评价影像检查在口腔癌诊断中的应用价值，探徐锋，罗德红，唐威，欧阳汉，周纯武目的分析口腔癌的CT及MRI表现，评价影像检查在口腔癌诊断中的应用价值，探索合理的影像学检查方法。方法回顾性分析经手术及病理证实的口腔癌46例（唇癌2例，牙龈癌8例，颊黏膜癌5例，舌癌24例，口底癌5例，硬腭癌2例），其中32例行CT扫描，14例行MRI扫描，将影像表现与手术所见及病理结果进行对照分析。结果46例口腔癌中，呈浸润性生长的溃疡型病变22例，外生性生长的肿物型病变24例。CT扫描32例，明确显示病变27例，遗漏病变5例，其中4例为表浅溃疡型病变。CT扫描病例中，10例有骨质侵犯，CT扫描准确评价8例，遗漏2例。MRI扫描14例，均准确评价肿瘤及其与四周结构的关系。结论 CT、MRI对口腔癌原发肿瘤的形态、大小、四周结构侵犯、颈部淋巴结转移的评价有重要价值。对于较小及呈浸润性生长的表浅溃疡型肿瘤，CT扫描尤其是CT平扫难以准确显示，应首选MRI。

To define the clinical usefulness of vestibular-evoked myogenic potential in detecting cervical medullar involvement related to human T-cell lymphotropic virus type 1 (HTLV-1) associated myelopathy/tropical spastic paraparesis.

目的：为了明确前庭诱发肌原性潜力的临床用途，我们检测了合并脊髓病/热带痉挛性下肢轻瘫的人嗜T淋巴细胞病毒I型感染（HTLV-1）所导致的颈部脊髓受累情况。

Results CT features of wet lung included 4 types:(1)the interstitial type in 10 cases,appeared as thicknees and blurring of the shadow of pulmonary blood vessels;(2)the disseminated consolidation type in 15 cases appeared as scattered mottling or small patch foci with slight high density in pulmonary paren...

结果CT表现分为4型：(1)间质型10例，肺血管影增粗、模糊，(2)弥漫实变型15例：肺实质内散在斑点状、小片状稍高密度灶；(3)云雾型20例，呈磨砂玻璃改变的云雾状稍高密度灶；(4)节段实变型15例，大片状或呈叶、段分布的高密度灶。结论螺旋CT能够明确显示创伤性湿肺的部位、类型、范围和发现合并伤的存在，是目前诊断创伤性湿肺有效的检查手段之一。

On a variety of seborrheic dermatitis, inflammation and itching of ringworm and other skin inflammation has specific therapeutic effects.

对各种脂溢性皮炎、癣性炎症和瘙痒等各种皮肤炎症有明确的治疗作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。