四对的

Objective To explore the effects of the dose and the way and times of administration of alloxan and body weight of mice in diabetic mice model.

目的 探讨四氧嘧啶剂量、给药途径、次数和小鼠体重对四氧嘧啶致小鼠糖尿病模型的影响。

Purification and analysis of AT-toxin Firstly, we detected the components of protein and nonprotein, the results showed that AT-toxin is a nonprotein. We have carried out the liquid chromatogram analysis of the toxin. The result indicates that there are many components in this toxin and there are four kinds of components which content is more than others. At last, we have the experiment of separating the cpmpositions with the silica gel and we get four components which are active.

AT-毒素的初步纯化与分析为确定AT-毒素的组分，首先对毒素的蛋白质和非蛋白质组分的毒性进行了测定，结果表明：AT-毒素活性组分为非蛋白质；对毒素进行硅胶G薄层层析，初步分离得到10种组分，其中四种组分具有活性：组分Ⅵ、Ⅶ、Ⅷ、Ⅸ，初步说明了该毒素含有多种组分；进一步对该毒素进行液相色谱分析，也发现该毒素含多种组分，其中四种组分峰高和峰面积较大，含量较高；其致毒活性可能是由这些组分协同作用的结果，它们之间可能存在正协同或负协同作用关系。

The study focuses on "value diversity", and explores it step by step with a route of "Review -Rethink and Criticism -Construction and Transcendence -Application"From a historical perspective, the study reviews and summarizes western educational evaluation theories and technology development, describes evaluation methods of so-called first three generations evaluation methods, and analyzes historical critique of them, including their failure to accommodate value-pluralism, a tendency towards managerialism, and the overcommitment to the scientific paradigm of inquiry; and then further points out that the fourth generation evaluation methods can be introduced for their effective response to problems of value-pluralism. The study focuses on the characteristics and ideology of the fourth generation evaluation theory; based on which, the research work investigates the social and cultural foundations of education evaluation theory and technology formation development from the dimension of the evolution of values foundation, the impact of social ideology and methodology conversion.

研究从历史的视角回顾、梳理了西方教育评价理论与技术的发展，对称之为前三代评价的方法进行了描述，并分析了历史上对这些早期评价方法的批判，包括对价值多元化的排斥问题、管理主义倾向、对调查的科学范式的过度推崇等；进而指出，第四代评价方法能够有效回应价值多元化问题而被引入，论文重点探讨了第四代评价理论的思想及特点；在此基础上，从价值基础的演变、社会思潮的影响和方法论的转换等维度考察了教育评价理论与技术形成发展的社会文化基础。

Evaluation of the Right Ventricular Outflow Tract in Children with Tetralogy of Fallot by Two-dimensional Echocardiography Using A New Subcostal View Preoperative evaluation of the right ventricular outflow tract in Tetralogy of Fallot is extremely important for surgical correction.

Ⅰ、2DE剑下新切面评价儿童四联症右室流出道梗阻程度的研究术前准确评价四联症右室流出道病变对外科手术非常重要，本文报告二维超声心动图(2DE)剑下新断面评价21例儿童四联症(年龄：2--13岁，平均6岁)的右室流出道的价值。

After the coefficients are quantized by a four-dimensional quantization matrix, most of them equal 0, and thus many zero planes appear in the submatrix.

用四维量化矩阵对变换后的四维子矩阵系数进行量化，量化后四维子矩阵中的变换系数大部分变成了零，这样就会在子矩阵中出现大量的零平面。

Fourth, the consequence of the alienation of policy-based finance is expressed from the following four aspects: incontrollable development, negative effects on financial development, economic development as well as on social and country development.

第四，从政策性金融异化后其发展的方向不可控，政策性金融异化对金融发展的负效应、对经济发展的负效应、对国家与社会发展的负效应等四个方面阐述了中国政策性金融异化的后果。

It is the first time to give the formulae of non diagonal matrix elements of tensor operator s which can be employed to describe the ro vibrational interaction for linear tetratomic molecules.

利用Lie代数方法研究了四原子分子振转相互作用，在代数框架内首次给出四原子分子振转相互作用的张量算子非对角矩阵元的表达式，利用这些表达式对线型四原子分子HCCF振转相互作用的l doubling进行了计

In Chapter 4 a new method to determine carbaryl in effluent was given and the hydrolysis of carbaryl in effluent with the aid of three-order calibarion was studied.

第四章应用四线性平行因子分析方法检测了农业污水中西维因的含量，同时利用四线性分解的优势，同时对其水解过程进行研究，得到了满意的结果。

We proposed that the non-adiabatic passage at zero-crossings of quadrupole splitting would not lead to the great loss of the spin locking signals, and the second-order quadrupolar interaction had significant effects on triple-quantum coherences, which was responsible for the fast decay of the signals; the both experiments and numerical simulations supported this point of view.

另外，在该谱仪上还进行了四极核钠-23的自旋锁定效率的研究；从含时Shr〓dinger方程出发，提出了一个更为确切的四极分裂过零处的绝热通过判据，并指出四极分裂过零处的非绝热通过不会导致锁定信号的快速消失，四极相互作用的二阶项对三量子相干的影响不能忽略，它是引起锁定信号快速消失的原因；实验和数字模拟的结果证实了这个理论。

It is considered that the four-evaporator three-effect process is the most practical for the evaporation of diaphragm caustic soda.

对三效顺流、四体三效及三效四体3种生产质量分数42%等高浓度烧碱的蒸发工艺的优劣性进行了对比分析，认为四体三效工艺在隔膜法烧碱蒸发中具有较强的实用性。

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。