Read the article and select the best answer. Article: Scientists Alan M.Goldberg and Thomas Hartung describe recent advances in replacing the use of animals in toxicology testing.Improvements in cell and tissue culture technologies,for example,allow a growing number of tests to be performed on human cells alone.Computer models are becoming increasingly complex and many could one day become more accurate than trials in living animals. Since the late 1990s,Huntingdon Life Sciences--a company that conducts testing of substances on animals conducted by the Environmental Protection Agency and the Food and Drug Administration--has become a proving ground for aggressive strategies by animal-rights militants .At a hearing,a Senate.committee listened to testimony against Huntingdon employees and financial institutions providing services to the company.One experimentation witness at the hearing insisted that any means necessary were justified to spare animals' lives;he has previously accepted the idea of murder to that end. Use of animals in testing and in biomedical research continues to be necessary in many instances and is ethically preferable to experimenting on humans or giving up cures that could save human lives.But for the sake of people and animals alike,the development and acceptance of animal substitutes deserve enthusiastic support. In some instances, substitutes are already thought as good or better than animals,but supervising agencies have yet to catch up.In both the European Union and the U.S.,scientists and companies wanting to use the new alternative tests complain that regulatory standards for proving a drug or chemical to be safe for humans force the continued use of animals.Thus,animal-loving Americans might turn to persuading the EPA and the FDA to speed validation of new methods so that they can be more widely employed.And animal advocates who want to influence business could consider investing in the small biotech's and large pharmaceutical companies that are working to develop alternatives to animals in research. Question: What's the main idea of the passage? Options: A: Saving animals and people. B: The new trend in toxicology testing C: The use of animals in testing is against human nature D: New technology changes the fate of animals
B

Read the article and select the best answer. Article: Like many languages spoken by people, Ayapaneco is dying. Only two people in the world still speak it, and they won't talk to each other. Spoken in Mexico for centuries, Ayapaneco is one of 68 surviving languages in the mainly Spanish-speaking nation. The two speakers are Manuel Segovia and Isidro Velazquez. Though they live only 500 meters from each other in the village, the two men seldom talk to each other. Daniel, an American expert, who is working to make a dictionary of Ayapaneco, says the two men "don't have a lot in common," and that Segovia can be "active" while Velasquez tends to mind his own business and stay at home. While Segovia still speaks to his wife and son in Ayapaneco, neither of them can manage more than a few words. Velasquez hardly speaks his native tongue any more. Daniel is working to preserve the language in dictionary form before its last surviving speakers pass away. According to Daniel, Ayapaneco and the other languages began dying out with the introduction of public Spanish education in the mid-20thcentury. For decades, local children weren't allowed to speak anything else. Many people to cities, starting in the 1970s, also helped the dying out of native languages. Ayapaneco is the name given to the language; Segovia and Velazquez call it "Nuumte Oote", which means "true voice". Neither man, however, speaks the same language. The dictionary will contain two versions of the language when it comes out later this year. Those behind the dictionary aren't the only ones trying to save Ayapaneco. The National Language Institute plans to hold classes so that Segovia and Velasquez can pass on what they know to children. It is thought that there are about 6,000 languages spoken on earth and that about half will disappear over the next 100 years. Let's hope the "true voice" isn't one of them. Question: From the text we learn that the author _ . Options: A: agrees that it is natural that Ayapaneco should die out B: thinks Daniel's effort to preserve Ayapaneco won't work C: thinks highly of Ayapaneco and wants people to learn it D: hopes that Ayapaneco will not die out in the future
D

Read the article and select the best answer. Article: China news, Oct. 26--China Great Wall Society's secretary-general Zhang Ji says that the Chinese Academy of Social Sciences (CASS) would join hands with the Society to produce a 3D picture of the Great Wall so that _ could view its original looks. When the website opens, a picture of the revolving earth will appear against the background of the universe. A click on the Great Wall will bring the earth nearer, and slowly a white line is seen across the Chinese land in the north. A closer view shows that this is the Great Wall. Netizens will be able to appreciate the Great Wall with the eye of a tourist and "walk" from Shanhai Pass in the east of the Great Wall to Jiayu Pass in the west in just a couple of days. They can also take a look at the mineral resources and economic status of regions along the Great Wall. CASS and the Great Wall Society are trying their best to make this dream come true through working together closely. According to Zhang, to achieve the above effects, scientists will rely on airborne remote sensing, national geographical information system and global positioning system to collect detailed data of the Great Wall, analyze and process the data, apply them to satellite images for 3D translation, and thereafter create a 3D digital image of the Great Wall for the entire world to appreciate the really great Great Wall of China via the Internet. Question: What would be the best title for the news report? Options: A: Modern Technology and China's Tourism B: China's New Action to Protect the Great Wall C: A New Picture of China's Great Wall is to Appear on the Internet D: China is to Produce 3D Great Wall
D