Write a multi-choice question for the following article: Article: If you look at the night sky, you'll often see stars moving very quickly. In fact, they move much more quickly than they should according to their size and the laws of physics. Scientists do not completely understand why the speed of these stars is so high. But many believe the reason is that much of the universe is made of something called "dark matter". Groups of stars called galaxies, such as the Milky Way, might even be made up of 90 percent dark matter. How much something weighs depends on where it is. The same object weighs only half as much on Mars as it does on Earth and almost three times as much on Jupiter. So scientists prefer to talk about the mass of something rather than how much it weighs, because mass does not change. They can work out the mass of galaxies by measuring the distance between them and the speed they move at. Recently, Jorge Penarrubia, a senior academic at Edinburgh University, UK, and his team discovered something interesting: The mass of the Milky Way is only half as much as the mass of another nearby galaxy, Andromeda. This seems strange, and dark matter may explain why. Finding out more about dark matter could help us understand how the universe began, but this is not easy. Lots of scientists with different types of expert knowledge are working on the problem. We can't see dark matter, it's very difficult to measure and we can't find out its mass. Unlike stars, dark matter doesn't produce or reflect light. But we can make a good guess that it is there because of the way things move and the way light bends. Experts now think dark matter may be very different from the matter that we find on Earth. There may also be five times as much dark matter in the universe as ordinary matter.
----
Answer: Question: The author mentions the masses of the Milky Way and Andromeda mainly to _ .Options:A explain why the same object has a different weight on different starsB compare the distance between the Milky Way and AndromedaC show that studying dark matter could help to answer some scientific questionsD support the idea that scientists prefer to talk about mass instead of weightAnswer:C

Write a multi-choice question for the following article: Article: The truth was written all over her face. The eyes are the window to the soul. From those sayings, you would think that we could read faces. In fact, people tend to overestimate their ability to do it. Most of us can't distinguish between certain expressions without contextual clues. In one study, participants were unable to tell whether faces in photos were showing pain or pleasure about a quarter of the time. In another, when people watched silent videos of the same person experiencing pain and faking pain, they couldn't tell which was which. And yet, as bad as we are at reading expressions, we jump to all kinds of conclusions based on people's faces. We might scoff at the ancient physiognomy--assessing character on the basis of facial feature--but we unknowingly practice it daily. Recent research shows that while there's practically no evidence that faces reveal character, we nonetheless behave as if certain features signal certain traits. People with typically "female" facial features seem more trustworthy; those with lower eyebrows appear more controlling. In another study, people were ready to decide whether an unfamiliar face should be trusted after looking at it for just 200 milliseconds. Even when given a chance to look longer, they rarely changed their mind. Such judgments can defy logic. Subjects playing a trust game invested more money with a player who had a trustworthy face than with one who didn't--even when the two players had the same fame. Another study reported that judges needed less evidence to sentence a person with an untrustworthy face. And a researcher focusing on the Israeli-Palestinian conflict found that a Palestinian peace offering was more likely to be accepted by Jewish Israeli if it was attributed to a politician with "babyfacedness". Which brings us to a contradiction. A person's face may not reflect her nature, and yet research finds that specific facial features do seem to influence futures. U.S. Army War College graduates with controlling-looking faces are more likely than...
----
Answer: Question: Which of the following is TRUE according to the author?Options:A People rush to judgments based on facial features.B People are better at telling "pain" than "delight" from faces.C People consider it instructive to study the ancient physiognomy.D People would change their first impression if given more chances.Answer:A

Write a multi-choice question for the following article: Article: Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning . Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms. Certain microorganisms cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release poisons that make people sick. Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops. Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms. When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous. Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.
----
Answer:
Question: Which of the following statements is NOT true?Options:A Food when poisoned can make people sick.B Food poisoning means death.C Food poisoning comes in varieties.D Food poisoning can be serious.Answer:B