未知题型 This passage is mainly about______.A．changes in food production practicesB．a growing demand for high quality foodC．the benefits of organic food informationD．the challenges facing the world food industry

未知题型 We learn from the first paragraph that many Americans believe______.A．Japanese parents are more involved in preschool education than American parentsB．Japan's economic success is a result of its scientific achievementsC．Japanese preschool education emphasizes academic instructionD．Japan's higher education is superior to theirs

未知题型 It is stated in Paragraph 1 that organic food______.A．is considered as a better choiceB．has become popular over the last 50 yearsC．reflects the change of production practicesD．is mostly supplied by world famous companies