Different elasticity of demand is not a must to apply price discrimination.

Different elasticity of demand a must to apply price discrimination.

不同的需求弹性才能实施价格分歧.

AIM: To study the biological characteristics of uterine natural killer cells ( uNK cells) and peripheral natural killer cells ( pNK cells) in early gestation and their difference on physiological functions.

目的：研究妊娠期子宫NK细胞（uNK细胞）与外周血NK细胞（pNK细胞）的生物学特性，比较两者在生理学功能上的差异。

Results: The high purity uNK and pNK cells were gotted.

结果获得了高纯度的NK细胞；

Conclusion: QKT has good antivirus effect, and it may be the possible mucosal immunological mechanism that QKT can increase IgA and reduce ICAM-1's express in the intestine.

结论：前胡咳痰汤有明显的抗病毒作用，能增加肠道IgA并抑制肠道ICAM1表达可能是其药理作用的黏膜免疫机制。

Moreover, from the 2003-04 school year, all new kindergarten teachers must possess a pre-service QKT qualification. This requirement will be raised to 100 per cent by the 2004-05 school year.

由二零零三至零四学年开始，所有新入职幼稚园教师必须在入职前具备合格幼稚园教师的资格。

Results: 1 QKT high dose group and QKT low dose group can prolong the cough incubation period in mice.

结果：1前胡咳痰汤大、小剂量组均能明显延长小鼠咳嗽潜伏期。

Elementary analysis and calculation of the QKT 50D drill's hydraulic system design

浅析QKT50D型钻机液压系统结构设计与计算

She should shave more often, but there didn't seem much point to it.

她应该更经常地剃剃汗毛, 不过好像也没什么意思.

People are dying of cancer more and more often.

死于癌症的人越来越多了.

As often as I tried to phone him the line was engaged.

每次我给他打电话都占线.

As often as he's tried to go there, he's always failed.

每次他争取去那里都未能成行.

Buy fresh produce as often as possible.

尽量常买新鲜农产品。

Conclusion It is helpful to predicting the occurrence of delayed brain disease following acute COP by measuring constantly the PNO level of patients.

结论动态观察急性CO中毒后病人血浆NO变化有助于预测迟发性脑病的发生。

Anomalous zero field splitting in ( pno) cucl · h 2O crystal

（pno）CuClH2O的反常零场分裂

The Relationship between Plasma Nitric Oxide ( PNO) and Delayed Brain Disease Following Acute Carbon Monoxide Poisoning

一氧化碳中毒患者血浆NO含量与迟发性脑病的关系

Study on Clinical Significance and Impact on Prognosis of Blood Micrometastasis in pNo Period Esophageal Squamous Cell Carcinoma

pNo期食管鳞癌血液微转移临床意义及预后研究

Analysis on Thermal-mechanical Stress and Moisture Driven Delamination in the QFN Package Devices

热–机械应力和湿气引起QFN器件层间开裂分析

Effects of Moisture on the Reliability of QFN Device in Hygro-Thermal Environment

湿热环境下吸潮对QFN器件可靠性的影响研究

Study on Interface Delamination of QFN under Thermal Shock Loading Based on CZM Method

基于CZM法QFN器件热冲击载荷下的界面脱层研究

Finite element analysis on soldered joint reliability of QFN device

QFN封装焊点可靠性的有限元分析