input question: Write a multi-choice question for the following article, with the given choices and answer: Article: The place is England. The year is 1928. One of the founding theorists of quantum mechanics , Paul Dirac, is scratching his head because solutions to his equations have _ unexpected results. For the solutions to make sense, he reasons, there must be a particle that has the mass of an electron but the opposite charge. At the time, such a thing was not known to exist. Several years pass before American physicist Carl Anderson observes a "positive" electron, or positron that confirms Dirac's prediction. Antimatter , as the name implies, can be described as the opposite of ordinary matter. Every particle in the universe has characteristics such as mass and charge. With antimatter, the mass remains constant, but the sign of the charge is reversed. All particles have an antimatter counterpart , even the chargeless neutron . Unlike matter, antimatter is not common. Unless you're in the upper atmosphere, or inside a particle accelerator, you're not going to come across it. "Antimatter was not always so rare," Stephane Coutu, Penn State particle physicist says. There was a time when it was as prevalent as matter itself. "Right after the Big Bang ," Coutu explains, "we believe there must have been exactly the same amounts of matter and antimatter...and yet owing to some small asymmetry in the laws of particle interactions, all of the antimatter and most of the matter in the early universe was annihilated . We are left today with the resulting matter-dominated universe." Science fiction is rife with tales of high-energy particle annihilation, and indeed, antimatter weapons have appeared in current bestselling novels. This is unrealistic, Coutu says. "[It] would be very impractical owing to very great difficulties in producing and maintaining significant amounts of antimatter." Technology that uses the properties of antimatter is actually feasible outside of science fiction, however. Positron emission tomography (PET) is a medical technique that can be used to detect cancer, measure blood flow and detect coronary... Options: A how antimatter was discovered B the properties of antimatter C where does antimatter come from D what antimatter is and its potential application Answer: D what antimatter is and its potential application Question:???
output answer: The main idea of the passage is _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Health and climate scientists have mapped how climate change affects different parts of the world in different ways. The scientists point to the fact that changes in the past thirty years may, have been affecting human health. Possible effects include more deaths from extreme heat or cold, more storms and more crop failures in dry periods. The health and climate scientists recently estimated that climate changes caused by human activity lead to more than one hundred and fifty thousand deaths each year. Cases of sickness are estimated at five million. And the W.H.O. says the numbers could rise quickly by the year of 2003. Jonathan Patz of an environmental institute led the study. Professor Patz points out that climate scientists connected global warming with the heat that killed thousands in Europe in August, 2003. But he says poor countries least responsible(......) for the warming are most in danger from the health effects of higher temperatures. Professor Patz says areas in greatest danger include southern and eastern Africa and coastlines along the Pacific and Indian oceans. Also, large cities experience what scientists call a "heat island"effect that can make conditions worse. Representatives from about two hundred countries hold a meeting in Canada, to discuss climate change. The ten-day meeting ends on December 9th. It is the first such United Nations meeting since the Kyoto Protocol took effect earlier this year. The agreement aims to reduce the amount of carbon dioxide and other heat-trapping gases sent off into the air. Options: A climate changes are having a bad effect on human's health B Professor Patz leads the study of climate changes C a "heat island"effect large cities experience makes the matter worse D rich countries are most responsible for climate changes Answer: D rich countries are most responsible for climate changes Question:???
output answer: We can infer from the passage that _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: The united States has about 475,000 school buses -- all painted yellow. Each day they carry more than 25,000,000 children, half of all schoolchildren in the country. But these buses, on average, use four liters of diesel fuel to travel less than sixteen kilometers. When the school year began last fall, diesel averaged 55 cents a liter nationally. The price nearly doubled, to a dollar and 8 cents, by the end of school in June. Bob Riley speaks for the American School Bus Council. He says fuel prices for schools are not much lower than others have to pay. As a result, schools are looking for ways to reduce transportation costs. Bus routes are being redrawn or, in some cases, canceled. Some areas are buying buses that use natural gas or other alternative fuels. Other steps include fewer field trips and less travel by sports teams. And some school districts may end any bus service not required by law. Studies show that school buses are the safest form of transportation to and from school. The American School Bus Council says cuts in bus service are bad for children and possibly the environment. It says removing buses from the road will mean an increase in other vehicles transporting students. Spokesman Bob Riley says another concern is that reducing bus services might reduce attendance. But it could also get more children to walk or bicycle to school. And that would surely make people happy at the National Center for Safe Routes to School. More kids walking or biking safely to school is the aim of a three-year-old federal program, part of an international movement. The goal is to increase physical activity and reduce air pollution. The United States will celebrate Walk to School Day on October eighth this year. But for some students, high fuel prices could make every day a walk-to-school day. Options: A High fuel prices' influences on school buses. B New measures to transport school students. C The safest form of student transportation. D The origin of Walk to School Day. Answer: A High fuel prices' influences on school buses. Question:???
output answer: What does this passage mainly tell us?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: The lights dimmed,the musical hall grew quiet and out walked the conductor shiny and white and 4 feet and 3 inches tall. ASIMO, a robot designed by Honda Motor Co., met its latest challenge Tuesday evening: Conducting the Detroit Symphony , in a performance of "The Impossible Dream" from "Man of La Mancha". "Hello, everyone," ASIMO said to the audience in a childlike voice, then waved to the orchestra. As it conducted, it perfectly mimicked the actions of a conductor, nodding its head at various sections and gesturing with one or both hands. ASIMO took a final bow to excited shouts from the audience. Later, cellist Yo-Yo Ma joined ASIMO onstage to receive an award for his efforts in music education. Honda spokeswoman Alicia Jones says it is the first time ASIMO has conducted an orchestra, and it may be the first time any robot has conducted a live performance. But ASIMO has its limits. ASIMO's engineers programmed the robot to mimic Charles Burke, the Detroit Symphony's education director, as he conducted the piece in front of a pianist about six months ago. But it can't respond to the musicians. "It's not a communicative device. It simply is programmed to do a set of gestures," said Leonard Slatkin, the orchestra's musical director. "If the orchestra decides to go faster, there's nothing the robot can do about it. Hopefully, I keep that under control." But several musicians also said ASIMO was more realistic than they expected. "The movements are still a little stiff , but very humanlike, much better than I thought," Hutchinson said. Options: A Disappointed. B Moved. C Excited. D Astonished. Answer: C Excited. Question:???
output answer:
What's the audience's response to ASIMO's performance?