[!--title--]

来源 :当代教育实践与教学研究 | 被引量 : [!--cite_num--]次 | 上传用户:[!--user--]
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
[!--newstext--]
其他文献
For showing the epicentral distribution in and near China as well as all over the world,two epicentral maps for the earthquakes occurred last year are published
In aquatic environment, iron redox reaction may occur through a) microbial activity and b) photo-chemistry. Iron chemistry plays a significant role in the healt
The Hongfeng Reservoir was built in 1960 and is an alkaline, hyper-eutrophic and seasonal anoxic reservoir due to the contamination from domestic and industrial
随着管制放松与竞争加剧 ,金融领域出现业务多元化、组织集团化趋势。传统国际金融监管手段无法适应形势需要。三大国际监管机构联合出台了《多元化金融集团监管的最终文件》
洲国家地区 首店开业时间 店数洲国家地区 首店开业时间 店数洲国家地区 首店开业时间 店数欧洲(1 63 )法 国 1 963 1 4 3葡萄牙 1 991 5土耳其 1 993 2意大利 1 993 6波 
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
Urban particles, as one of the toxic air pollutants, are important issues concerning air quality and public health, especially in large cities like Guangzhou (C
Antioxidase can play an important role in protecting the plants from damage under the stress of pollutants. In this work, in order to know the effects of antiox
Soils contain about twice the amount of carbon presented in the atmosphere, so a small change in the soil carbon will influence atmospheric chemistry and heat b
黄春平,1938年生,1964年毕业于北京工业学院,曾担任“863-409,计划中的首席科学家。担任过长征三号、长征二号丙火箭总指挥,现任长征二号F火箭总指挥。 Huang Chunping, bor