Objective To investigate the status of schistosome infection and reinfection in different stages in main infection season among residents in heavy epidemic areas in Yunnan Province and to provide evidence for making more effective measures of schistosomiasis control.
目的了解云南省血吸虫病重疫区主要感染季节的不同阶段居民血吸虫感染、再感染情况,为制定更具针对性的防治措施提供依据。
Based on current culture teaching in FLT, this paper proposes a teacher should act as different roles at different stages of classroom culture teaching and learning from the perspective of learning, so to enhance the effect of culture teaching.
在课堂文化教学中,教师应从文化学习者的角度出发,针对学生在学习过程中不同阶段的需求和困扰,担任不同角色,充分发挥自身作用,以提高文化教学效果。
Although some analyses have been conducted on collocation errors, there are few researches on comparative analyses of collocation errors committed by Chinese English learners at different stages of English learning.
又由于动名搭配失误在搭配失误中占有很高的比例,本文将研究的目标定为不同阶段的中国英语学习者动名搭配失误对比分析。
Generalized synchronization of different orders of chaotic systems with unknown parameters and parameter identification;
参数未知的不同阶数混沌系统广义同步及参数估计
Form the point of practical application, in this paper, we study chaos synchronization of complex Duffing system, lag synchronization of chaotic system with unknown parameters and generalized synchronization of different order of chaotic systems with unknown paramete.
本文从实际应用的需要出发，研究了复Duffing系统的混沌同步及目标跟踪、参数未知混沌系统的延迟同步、参数未知不同阶数混沌系统的广义同步及参数估计。
This paper,by use of document surveys and statistics,we investigate the computition of physical education by different estate inhabitant to discuss three aspacts economy transition,cost of living multiform and consumption delaminate and the develoption of physical education industry.
文章采用问卷调查、访谈等方法对成都市不同阶层居民体育文化消费状况进行调查,从经济变迁、生活方式多元化及消费阶层和体育产业的发展这三个方面进行分析,文中所指的阶层大致分三层,上层包括领导干部、私营老板和有名的知识分子等,中间层包括一般的工薪阶层,下层包括“农民”、“下岗工人”、“民工”等,通过调查可知体育文化消费,不同阶层受不同经济条件、生活方式的影响而影响:上层人员以健身、时尚、休闲、娱乐、社交为取向达到较高的体育消费水平;中层人员参加体育活动的热情较高,但体育消费的投入却很低;下层人员几乎不参加任何体育活动,体育消费接近零。
This paper considers some properties of the sum of equal powers and the product of the elements of the same order in the reduced residue system.
证明了既约剩余系中同阶元的等幂和函数与乘积函数的３条性质。