2009年什么年

百度 然而科学追梦者们并没有因此却步，在重压下仍能保持一颗平常心。

CHANGSHA - The fourth China-Africa Economic and Trade Expo opened on Thursday in the Central Chinese city of Changsha.

Nearly 4,700 Chinese and African companies as well as over 30,000 participants will attend the four-day event, themed "China and Africa: Together Toward Modernization."

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