题目内容

Up to now, ( ) is the most important variety that the ancestors of the Chinese nation have influenced and contributed to human survival and social development in crop breeding.

A. wheat
B. corn
C. rice
D. millet

查看答案

搜索结果不匹配？点我反馈

更多问题

The year 2018 marks the 40th anniversary of China's reform and opening-up. Meanwhile, China has only spent more than ten years to basically solve the problem of feeding nearly 1 billion people (basically completed the rice bag project), a miracle in the history of human development, whose most intuitive and popular symbol is ( ).

A. dietary nutrition status of Chinese residents in 1992: total heat/person (60 kg standard weight)/day: 2328 calories; Fat content: 58 g; Protein: 68 g, etc.
B. the grain output has continuously reached a high level of production increase
C. all edible agricultural products were hard to sell in 1999
D. food tickets such as "food coupon and quota of grain and edible oil " were completely cancelled in 1993

查看答案

In the new century, after just over ten years of development, the biggest problem facing the development of China's food industry (dining table engineering) at present and in the future is ( ).

A. national nutrition and health
B. food supply guarantee
C. food abundance guarantee
D. export expansion

查看答案

In the last decade, the most important new ideas, new theories and new perspectives on food and the nutrition and health of the human diet by scientists around the world have been ( ).

A. discovering functional food systematically (develop series of health care products, etc.)
B. the relationship between food and intestinal microbial flora metabolism and human health
C. new food processes and technologies
D. a series of bioactive and functional substances in food were systematically developed

查看答案

According to the theory of single origin of human beings, the main reason that drives human beings to have to migrate on a large scale (worldwide) is（）.

A. looking for living food
B. coping with climate change
C. insufficient regional resources
D. ethnic territory struggle

查看答案

Up to now, ( ) is the most important variety that the ancestors of the Chinese nation have influenced and contributed to human survival and social development in crop breeding.

A. wheat B. corn C. rice D. millet

In the new century, after just over ten years of development, the biggest problem facing the development of China's food industry (dining table engineering) at present and in the future is ( ).

In the last decade, the most important new ideas, new theories and new perspectives on food and the nutrition and health of the human diet by scientists around the world have been ( ).

According to the theory of single origin of human beings, the main reason that drives human beings to have to migrate on a large scale (worldwide) is（ ）.

A. wheat
B. corn
C. rice
D. millet

According to the theory of single origin of human beings, the main reason that drives human beings to have to migrate on a large scale (worldwide) is（）.