题目内容
Weiqi is a popular board game that originated in China. It is played with black and white pieces on a square wooden board of 361 intersections formed by 19 vertical lines and _________ horizontal lines.
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_______ became the first Chinese Nobel laureate in physiology or medicine and the first citizen of the People's Republic of China to receive the Nobel Prize in natural sciences (2015).
Yuan Longping’s; pioneering work in hybrid rice breeding and production techniques has revolutionised rice cultivation in China, establishing China’s world leading position in hybrid rice research. China is now able to feed _________ of the world’s population with only 7% of the world’s total arable land.
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