Problem: Write a multi-choice question for the following article: Article: In American crime movies, policemen search crime scenes for anything that might belong to a criminal-- bits of fingernail , blood or hair-- in order to find out who they are. What they hope to find is the key to their identity--their DNA. DNA is the chemical that contains a person's genetic makeup. Every person, except for identical twins, has unique DNA information. That is why we can use it to identify someone. There is no doubt that DNA evidence is becoming a very powerful tool for law enforcement officers. In the US, all 50 states and the federal government keep DNA databases of some criminals after they have been convicted . Whenever a crime happens, the police collect DNA from the crime scene and compare this with samples they already have in the criminal database. If they match any suspect in the database, then they've caught their criminal. Even if they don't, the DNA sample can still be used to determine the person's sex, height, hair and eye color1 and other characteristics. This helps police to create a physical profile of the criminal. Some people feel that the database should be made bigger to contain everyone's DNA and help to solve many more crimes. This would also avoid mistakes when someone is wrongly convicted of a crime. DNA doesn't make mistakes. However, other people are worried that it would violate their privacy. Someone's DNA can be used to gather information such as the person's family and ethnic background, whether he or she has a gene mutation or certain genetic diseases, and other personal issues. People are afraid that this information might be used inappropriately. They may fear that employers might read it and treat them differently. People may also be afraid that personal data might get into the hands of insurance firms or loan companies. For example, if they knew from your DNA that you had a genetic risk of a serious disease, they might be able to refuse you life insurance, a loan, or even a job. Clearly, the use of DNA evidence will continue to help the police solve...

A: Question: Some people suggest building a database containing everyone's DNA because _ .Options:A it would mean fewer people commit crimes.B it would make it more convenient for the government to gather informationC it would help the police identify suspects more efficiently and accuratelyD such a database could be helpful in many more fields besides solving crimesAnswer:C

Problem: Write a multi-choice question for the following article: Article: By the mid-nineteenth century, the term "icebox" had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities. Ice was used in hotels, taverns , and hospitals, and by some forward-looking city dealers in fresh meat, fresh fish, and butter. After the Civil War (1861-1865), as ice was used to refrigerate freight cars, it also came into household use. Even before 1880, half of the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use. This had become possible because a new household convenience, the icebox, a precursor of the modern fridge, had been invented. Making an efficient icebox as not as easy as we might now suppose. In the early nineteenth century, the knowledge of the physics of heat, which was essential to a science of refrigeration, was rudimentary . The commonsense notion that the best icebox was one that prevented the ice from melting was of course mistaken, for it was the melting of the ice that performed the cooling. Nevertheless, early efforts to economize ice included wrapping up the ice in blankets, which kept the ice from doing its job. Not until near the end of the nineteenth century did inventors achieve the delicate balance of insulation and circulation needed for an efficient icebox. But as early as 1803, and ingenious Maryland farmer, Thomas Moore, had been on the right track. He owned a farm about twenty miles outside the city of Washington, for which the village of Georgetown was the market center. When he used an icebox of his own design to transport his butter to market, he found that customers would pass up the rapidly melting stuff in the tubs of his competitors to pay a premium price for his butter, still fresh and hard in neat, one-pound bricks. One advantage of his icebox, Moore explained, was that farmers would no longer have to travel to market at night in order to keep their produce cool.

A: Question: Without an ice box, farmers had to go to the market at night _ .Options:A to sell their produce at high priceB to go home earlierC to keep their produce freshD to win more customers than their competitorsAnswer:C

Problem: Write a multi-choice question for the following article: Article: Nuclear-powered aircraft carriers are considered one of the most important marine weapons in the 20th century. So far, only two countries in the world--the prefix = st1 /USAandFrance--have ever produced them. But these frightful fighting machines are about to enter Asia. The US Navy said last month that one of its nine nuclear-powered aircraft carriers will be sent to Japanto replace the diesel-powered carrier Kitty Hawk in 2009 in an agreement on October 30th. The two countries also planned to level up their military cooperation and theUSAcalled forJapanto take a large role in alliance military moves. It will be the first time that a nuclear-powered carrier is based in Japan. Bombed byUSforces in World War II at Hiroshima and Nagasaki,Japanis the only world country to have been attacked by a nuclear weapon. Therefore, the citizens are highly sensitive to where nuclear-powered weapons are based. "A radiation leak at Yokosuka would kill 100,000 people as far away as Tokyo, and could cause billions of dollars in damage," said Masahiko Go to, leader of a protest group inYokosuka. His group has collected more than 300,000 signatures of people acrossJapanopposed to the nuclear carrier. The 44-year-old Kitty Hawk, the USnavy's oldest active ship, has been based in Yokosuda since 1998. The new carrier, yet to be _ , will travel faster, be capable of supporting longer operations and carry with it the Navy's most modern technology. Experts pointed that this change is not only to strengthen the US-Japan military alliance but also to keep the military power of ChinaandNorth Koreawithin limits. However, Japanese experts don't believe that the countries are threats to the region. "There is no need for Japanto have a nuclear carrier as defense," said Tetsuo Maeda, an international relations professor atTokyoInternationalUniversity. He said that the change of ship indicates an increased military capacity, in the region, much more than what is needed.

A:
Question: The replacement of the aircraft carrier is intended toOptions:A show Japan's greater,military capabilityB strengthen the US-Japan military allianceC get rid of the dated marine weaponD set up a kind of base in JapanAnswer:B