input question: Write a multi-choice question for the following article: Article: The State Council submitted a bill which aims to allow couples to have two children if either parent is an only child. It focuses on adjusting and improving the family planning policy. The State Council argues adjustment to the policy in the face of a steadily declining birth rate. The birth rate has remained relatively low and shows a tendency to fall further. The rate has dropped to between 1.5 and 1.6 since the 1990s, which means each Chinese woman of child-bearing age gives birth to 1.5 to 1.6 children on average. The working population began to drop in 2012 by 3.45 million every year, and it is likely to fall by 8 million each year after 2023. The population aged 60 and above will reach 400 million and account for one-fourth of the total population in the early 2030s, up from one-seventh now. "If the current family planning policy continues, the birth rate will continue to fall and lead to a sharp drop of the total population after reaching a peak," said Li Bin, minister in charge of the National Health and Family Planning Commission. "It is the right time to make changes: The low birth rate is stable, the working population is still large and the burden of supporting the elderly remains relatively light," he added. An increase in birth is expected if the policy changes but will not seriously affect the food supply, public education, health care or employment. China's food safety and public service plans are designed to meet the needs of 1.43 billion population in 2020 and 1.5 billion in 2033. Even with the policy change, the total population will reach no more than 1.38 billion in 2015, Li said.???
output answer: Question: The new policy may have an effect on the following expect _ .Options:A public educationB the food supplyC the divorce rateD employmentAnswer:C

input question: Write a multi-choice question for the following article: Article: "Eat local." It's one way to reduce human effect on the planet.Eating local means to try to buy and consume foods that are grown in places close to home.However, most of the food sold at supermarkets is not locally grown or produced.Trucks and planes deliver these foods from hundreds or thousands of miles away.During the transportation, greenhouse gases are produced, causing global warming.So the shorter the distance your foods must travel, the less the harm is done to the environment. But how do you get local food if you live in a large city, hundreds of miles away from farms?Environmental health scientist Dickson Despommier and his students came up with the idea of a "vertical farm". A vertical farm is a glass-walled structure that could be built as tall as a skyscraper.Since the garden is built upwards, rather than outwards, it requires much less space than an ordinary farm.The world is quickly running out of room for ordinary farming.Vertical farms could be a key to this situation.Despommier imagines a 30-story building with a greenhouse on every floor.The walls of the building would be clear, to allow crops to get as much sunlight as possible.Depending on a city's water resources, Despommier thinks hydroponic farming is another method for the vertical farm which needs no soil to grow plants. Despommier says the hydroponic greenhouses would use a system that would use a city's waste water and fill it with nutrition to make the crops grow.If this method works, it would provide food to a city and save millions of tons of water. The idea of a vertical farm has attracted the attention of government officials around the world.Scott Stringer, a government official from New York City, thinks the city is suitable for the vertical farming."Obviously we don't have much land left for us," Stringer said, "But the sky is the limit in Manhattan." Despommier admits that there is still a lot of work to do to make vertical farms a reality."But I think vertical farming is an idea that can work in a big way." he says.???
output answer: Question: Which is one of the vertical farm's benefits when compared with ordinary farming?Options:A It produces healthier food.B It does less harm to the cities.C It consumes more energy of the city.D It requires less transport costs.Answer:D

input question: Write a multi-choice question for the following article: Article: The work of railroad pioneers in America became the basis for a great surge of railroad building halfway though the nineteenth century that linked the nation together as never before. Railroads eventually became the nation's number one transportation system, and remained so until the construction of the interstate highway system halfway through the twentieth century. They were of great importance stimulating economic expansion,but their influence reached beyond the economy and was strong in American society at large. By 1804, English as American inventors had experimented with steam engines for moving land vehicles. In 1820,John Stevens ran a locomotive and cars around in a circular track on his New Jersey estate,which the public saw as amusing toy. And in 1825, after opening a short length of track, the Stockton to Darlington Railroad in England became the first line to carry general traffic. American businesspeople, especially those in the Atlanic coastal region who looked for better communication with the West, quickly became interested in the English experiment. The first company in America to begin actual operations was the Baltimore and Ohio,wich opened a thirteen-mile length of track in 1830. It used a team of horses to pull a trainof passenger carriages and freight wagons along the track. Steam locomotive power didn't come into regular service until two years later. However, for the first decade or more, there was not yet a true railroad system. Even the longest of the lines was ly short in the 1830's, and most of them served simply to connect water routes to each other, not to link one railroad to another. Even when two lines did connect, the tracks often differed in width, so cars from one line couldn't fit onto tracks of the next line. Schedules were unreliable and wrecks were frequent. Significantly, however, some important developments during the 1830's and 1840's included the introduction of heavier iron rails, more flexible and powerful locomotives, and passenger cars were redesigned to...???
output answer:
Question: Which of the following can be inferred from the passage?Options:A The United States regarded Great Britain as a competitor in developing the most efficient railroad systemB Steam locomotive power was first used in 1832C American businessmen saw railroads as a threat to established businessesD Steam locomotives replaced horses because of the distances across the countryAnswer:B