小文同学在探究物体做曲线运动的条件时，将一条形磁铁放在桌面的A位置，让小钢珠在水平桌面上以初速度v₀运动，得到小钢珠的运动轨迹．图中a、b、c、d哪一条为其运动轨迹（   ）

要想国家强盛，一定要建设文化强国。建设社会主义文化强国，就应该（  ）

①建设社会主义核心价值体系

②全面提高公民的道德素质，丰富人民的文化生活

③弘扬中华传统文化，吸收各国文化成果

④充分发挥各级政府在文化建设中的主体作用

有学者将绢价按当时米价进行折算比较，发现明代中叶，江南的绢价明显下降，比宋代低约11%。这主要是由于(    )

    Many people are interested in talking about life in the future. Some people 1 that life in the future will be easier and more comfortable. But others believe that it will be worse and more difficult than now. As for me, I 2 the idea of the first team.

    First，as for education, people will have 3 education .This is because of technology (科技). E-books will replace (取代) common books, robots will replace teachers, and students will not have to go to school every day. They will 4 at home through online teaching and will find learning more interesting.

    Second, people' s 5 will improve. Technology will also play a very important role. New medicine will help people get better quickly. Robots will help doctors and sometimes replace 6 Also, doctors will be able to cure more diseases (治愈更多疾病), 7 people will live longer.

    Third, housing problems will end. People will build houses under the sea. Also, some people will live 8 the moon. Then everyone will have a place to live.

    Fourth, hunger will stop all over the world. People will grow crops (庄稼) everywhere 9 on the top of buildings.

    Now what about you? 10 do you think life in the future will be like?

（注：图中A表示“城镇职工基本医疗保险”，B表示“城镇居民基本医疗保险”；C表示“新型农村合作医疗”；D表示其他情况）