[Q]: Write a multi-choice question for the following article: Article: We know more about the surface of the planet Mars than we know about what is at the bottom of Earth's oceans. Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientists have produced a new map that provides a detailed picture of the oceans. The map is expected to help oceanographers, industry and governments. The new map is twice as detailed as the map made 20 years ago. David Sandwell is a geophysics professor at the Scripps Institution of Oceanography at the University of California. He and other scientists worked on the mapping project. He says they turned to space to look deeper into the ocean. He spoke to VOA on SKYPE. "The way we're doing that is to use a satellite altimeter , a radar to map the topography of the ocean surface. Now that seems sort of strange that you'd map the topography of the ocean surface when you really want to get at the sea floor. But, the ocean surface topography has these bumps and dips due to gravitational effects that mimic what's on the sea floor." The scientists collected and studied information from two satellites. Some of the data came from the European Space Agency's Cryo-2 satellite. It was placed in Earth's orbit to watch sea ice. The other satellite is the American space agency's Jason-1. It is studying the surface of the oceans. Scientists combined the satellite data with images gathered by sonar equipment on ships. Sonar works by sending sound waves through the water. When the sound waves hit an object, its presence is confirmed. "That enables us to look at smaller-scale features and also features that are buried by sediments in the ocean basins." The new map shows the sea floor as it has never been seen before. It shows thousands of underwater mountains and places where continents pulled apart. It shows where earthquakes were active many years ago. They all are buried deep underneath the ocean floor. In one place, three mountain ridges join at the...
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[A]: Question: Scientists collected and studied information by _ .Options:A the European Space Agency's Cryo-2 satelliteB the American space agency's Jason-1C sonar equipment on shipsD the Cryo-2 and the Jason-1Answer:D

input: Please answer the following: Write a multi-choice question for the following article: Article: How many historic churches, pubs or buildings are there in your city? Are there worth preserving? Or are they just a waste of space? There are arguments for and against spending money on historic buildings. Dangerous staircases. Uneven floors. A lack of IT infrastructure. The problem with many old buildings is that they're... old - and extremely expensive to modernize. Take the case of the Combination Room in Cambridge University. It was built in 1347 and was initially used for lectures. Later, it became the Regent House - the university's parliament. It's of enormous historical value and cultural interest. However, it doesn't meet accessibility standards for disabled people. As a result, a lift needs to be installed, but not everyone is happy about this. "Noting will persuade me that this lift would not in its effect, be a substantial alteration to the most precious room in the university. It would destroy the symmetry of that beautiful room," said one user. In general, modern buildings don't have this type of problem. They can be built according to the latest environment standards, with draught proofing and insulation to help reduce carbon emission and save energy. They can also be made wheelchair accessible, and they can be designed to ensure maximum comfort and space. Anyone who's been to a modern cinema, theatre or concert hall recently may understand the difference between the new buildings and older ones, which tend to have smaller seats, less space and poorer acoustics. Very often, there's money to be made by knocking down old building... especially if they're in city centers. So, the biggest threat to many historic buildings comes from developers. One of Croydon's oldest pubs, The Rose and Crown, is a perfect example of this. A property development company has recently been granted permission to convert the 18th century building into flats, much to the disappointment of many local residents. "The bar is full of unique features and perfect examples of a traditional London pub. It really would be truly...
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output: Question: What would be the best title of the passage? [ ]Options:A How to modernize old buildingsB Combination Room, the treasure of Cambridge UniversityC The threat to the old buildingsD Old buildings, to preserve or notAnswer:D

Problem: Write a multi-choice question for the following article: Article: Backpacks are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you don't mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, and maybe even light your way home. Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia2 and the Marine Biological Laboratory in Woods Hole3, Mass. 4, have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions, search-and- rescue operations, and scientific field studies, people rely increasingly on cell phones, global positioning system (GPS)5 receivers, night-vision goggles, and other battery-powered devices to get around and do their work. The backpack's electricity-generating feature could dramatically reduce the amount of a wearer's load now devoted to spare batteries, report Rome and his colleagues in the Sept. 9 Science6. The backpack's electricity-creating powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer's back, and the whole pack moves up and down as the person walks. A gear mechanism converts vertical movements of the pack to rotary motions of an electrical generator, producing up to 7.4 watts. Unexpectedly, tests showed that wearers of the new backpack alter their gaits in response to the pack's oscillations, so that they carry loads more comfortably and with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize both electric and non-electric versions of the backpack. The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. For the rest of us, power- generating backpacks could make it possible to walk, play video games, watch TV,and listen to music, all at the same time. Electricity-generating packs aren't on the market yet, but if you do get one eventually,...

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Question: Backpacks are convenient becauseOptions:A your hands are freed to do other things.B they can hold as many things as you want to carry.C they can be very large.D you do not have to carry things with you.Answer:A