Read the article and select the best answer. Article: A previously unknown kind of human group disappeared from the world so completely that it has left behind the merest piece of evidence that it ever existed -- a single bone from the little finger of a child, buried in a cave in the Altai Mountains of southern Siberia. Researchers removed DNA from the bone and reported that it differed obviously from that of both modern humans and of Neanderthals , living in Europe until the arrival of modern humans on the continent some 44,000 years ago. The child carrying the DNA line was probably 5 to 7 years old, but it is not yet known if it was a boy or a girl. The finger bone was unearthed in 2008 from a place known as the Denisova cave. Researchers are careful not to call the Denisova child a new human species, though it may prove to be so, because the evidence is initial. But the genetic material removed from the bone, found in a layer laid down on the cave floor between 48,000 and 30,000 years ago, belonged to a distinct human line that traveled out of Africa at a different time from the two known ancient human species. Homo erectus , found in East Asia, left Africa two million years ago, and the ancestor of Neanderthals moved away some 500,000 years ago. The numbers of differences found in the child's DNA indicate that its ancestors left Africa about one million years ago. The region was inhabited by both Neanderthals and modern humans at that time. Counting the new human line, three human species may have lived together. The standard view has long been that there were three human resettlements out of Africa -- those of Homo erectus; of the ancestor of Neanderthals; and finally, some 50,000 years ago, of modern humans. But in 2004, archaeologists reported that they had found the bones of small humans who lived on the Indonesian island of Flores until 13,000 years ago, causing a serious problem to this view. The new line is the second such challenge. If the nuclear DNA of the Denisova child should differ as much as its mitochondrial DNA... Question: According to the passage, _ . Options: A: modern humans arrived in Europe before Neanderthals B: modern humans arrived in Europe about 44,000 years ago C: Neanderthals arrived in Europe about 44, 000 years ago D: Neanderthals arrived in Europe soon after modern humans did
B

(Question)
Read the article and select the best answer. Article: For a long time, the traditional method of identifying liars was to watch their body language, including facial expressions. What if the person appears to be nervous? Is the person unable to look me in the eye? Is he or she look around the room? What about other nervous movements, such as fidgeting or shifting from side to side? Many people--from parents to police officers and airport security personnel--depend on this method. But does a person's body and face reveal the truth? Not according to a new study. Talking, it seems, is the best way to smoke out a liar. That is what researchers in the United Kingdom found out recently. Their investigation took place at one place where lying can get you into big trouble--an airport. The researchers asked volunteers to pretend they were real passengers and then lie to airport security agents. Some of the agents used spoke conversation-based methods to question these make-believe passengers. Others depended instead on the person's body language, like lack of eye contact and showing signs of nervousness. The agents talking with the passengers were 20 times more likely to catch the liars. The study found that these conversation-based techniques can help you recognize when a person is lying to you. Like many methods, this conversation method has a name. It is called Controlled Cognitive Engagement or CCE, for short. The British government partly financed this study. The American Psychological (APA) published the findings. Body language cannot be trusted. Using body language and facial expressions to catch someone in a lie is really hard. And it only works, seemingly, by chance. Thomas Ormerod is the head of the School of Psychology at the University of Sussex in England. On the APA website, he reported that the "suspicious-signs method"--or using body language--"almost completely fails" in finding lies. Question: What should volunteers in the investigation do? Options: A: Answer questions only using words. B: Pretend to be airport security agents. C: Act as passengers as researchers required. D: Communicate with researchers by talking.
(Answer)
C

Ques:Read the article and select the best answer. Article: There have always been laws against copying other people's ideas. However, when copying was only limited to copying something by hand, problems were solved easily. The solution was always the destruction or removal of the copy. Nowadays, the rise of the Internet has made the issue of intellectual property more complicated. Almost every bit of information can be cut and pasted with a few clicks of a mouse. Many art forms such as writings, films, and music need new protection to ensure that people do not simply transfer them for free. Online illegal copying has been blamed for a huge reduction in the sales of many records because it is hard to convince people to buy something that they can get for free. Even the ideas behind traditional games, such as Scrabble, have been used without the owners' permission. Old laws have been struggling to keep up. While music companies have been successful in persuading courts that action should be taken against people who illegally download music, the law is difficult to carry out. Furthermore, intellectual property rights vary widely from country to country, so it's up for debate which laws apply. Finally, there is the fact that many people simply do not see the act as theft , since once the work has been digitized there is no clear physical object to steal in the first place. All of these issues mean that companies involved with intellectual property -- ideas or easily digitized information -- are fighting desperately to get people to pay for the information they use, rather than paying for an object like a CD that they use. While the companies have sometimes been successful, the practical barriers to full protection seem _ . Finally, all that concerned parties can do is hope that their few successes scare off others and try to find new ways of making money. Question: What can be inferred from this passage? Options: A: Music and films will be unnecessary in the future. B: New laws are necessary but difficult to put into practice. C: The Internet is likely to become more important in the future. D: Laws are just a way for greedy companies to control their products.

Ans:
B