Further Promote and Expand sino-African Trade Cooperation——Interview with CCPIT Chairman Wan Jifei

As an important part of the 2^nd Forum of Sino-African Cooperation, the 2^nd Conference of Chinese and African Entrepreneurs, jointly organized by CCPIT （China Council for the Promotion of International Trade） and the Ministry of Commerce was held from November 4 to 5 in Beijing. Premier Wen Jiabao, 27 African presidents and 6 African government leaders attended the conference. Over 1800 Chinese and African representatives from various industries participated in the conference.     

围产期奶牛的生理变化及其与代谢紊乱的关系

奶牛大多数代谢疾病如产乳热、酮病、胎衣不下、真胃移胃等都发生在产后两周,这其中许多代谢病在分娩后两周不表现临床症状,但却会对泌乳早期牛带来很大危害.除了代谢病外,绝大多数传染性疾病,特别是乳腺炎,在分娩后头两周会产生临床症状.在围产期,为了预防疾病,必须保证三项生理功能的正常发挥(1)调整瘤胃适应产后高能量日粮;(2)维持正常的血钙水平;(3)激发免疫系统,保持强大的免疫功能.这三个功能中任何一个受到抑制都会大大增加代谢病与传染病的发生.本文阐述在奶牛围产期,与这三个因素有关疾病的发病机理.     

Enhancing the IPR System and Building An Innovation Society——Interview with Tian Lipu,Commissioner of the State Intellectual Property Office

Intellectual property rights（IPR）, a key issue in China＇s process of internationalization, has attracted extensive attention, both abroad and at home and has been more and more frequently discussed by the Chinese people, especially since the admittance of China into the WTO in 2001.     

Marketing the by-products of development programs

The Boeing Co., through two of its internal units, has been able to leverage the creativity of staff members and reap significant income from resources that might otherwise be underutilized.     

A Future with Hope：China Agriculture Outlook 2007

China's macro economy has remained in a good and stable condition overall,experiencing an annual GDP growth of over 10% for several consecutive years.Under this basic condition, the main focus of the Outlook was China's current grain and oil supply,and the demand market with its probable future prices.     

Third Eye on Worldwide Food Safety

"Food counts in people's life, and safety is the utmost important."Food safety is attracting attention around the globe. Recently,China has been in the limelight again when global media rampantly re- ported about the food safety problem in the country. Not only China but also the whole world is facing such a problem.Even developed countries are no exception.     

加速激情

在空港的停车场,我握住租来的樱桃色大艾姆(Grand,Am)的方向盘,体验着纯粹兴奋的时刻,当然其中也略带紧张。当我不安地调整汽车上镜子的角度并试图猜测仪表盘上哪个符号代表“前灯亮”的时候,我在告诫自己要弄明白这一点。某些旅行者进行冒险的活动或探险式的远足,诸如蹦极,攀登陡峭的山崖,从     

中国旅游教育发展现状与对策研究

通过对全国范围内200家旅游院校的调查,本文旨在指出中国旅游教育的特点和存在的问题,问卷显示,由于中国旅游业的不断发展,中国旅游教育院校的数量在10年中有了长足的发展。但是,在师资力量,学生实践经验以及国际化程度方面有待于进一步的提高。调查结果也显示了影响学生进入或留在旅游行业的因素中,薪酬是最重要的一个因素。     

30GHz单片接收机

已经研制成功30GHz接收机用的几种单片集成电路.低噪声放大器芯片在14dB增益时噪声系数为7.dB,中频放大器在30dB控制范围内,增益为13dB.混频器和移相器变频损耗和插入损耗分别为10.5dB和1.6dB.