Read the following article and select the best answer. Article: Scientists have devised a way to determine roughly where a person has lived using a strand ( ) of hair, a technique that could help track the movements of criminal suspects or unidentified murder victims. The method relies on measuring how chemical variations in drinking water show up in people's hair. "You're what you eat and drink, and that's recorded in your hair," said Thure Cerling, a geologist at the University of Utah. While U.S. diet is ly identical, water supplies vary. The differences result from weather patterns. The chemical composition of rainfall changes slightly as rain clouds move. Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes ( ). The heaviest rain falls first. As a result, storms that form over the Pacific deliver heavier water to California than to Utah. Similar patterns exist throughout the U.S. By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline. Each inch of hair corresponds to about two months. Cerling's team collected tap water samples from 600 cities and constructed a map of the regional difference. They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops. They were able to accurately place the hair samples in broad region roughly corresponding to the movement of rain systems. "It's not good for pinpointing ( )," Cerling said. "It's good for eliminating many possibilities." Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake. The woman was 5 feet tall. Police recovered 26 bones, a T-shirt and several strands of hair. When Park heard about the research, he gave the hair samples to the researches. Chemical testing showed that over the two years before her death, she moved about every two months. She stayed in the Northwest, although the test could not be more specific than... Question: What did Cerling's team produce in their research? - A map showing the regional difference of tap water. - A collection of hair samples from various barber shops. - A method to measure the amount of water in human hair. - A chart illustrating the movement of the rain system.
A map showing the regional difference of tap water.

(Question)
Read the following article and select the best answer. Article: How to avoid common life mistakes? 1. Don't do things you don't like Whenever you do things you don't like, you will start to hate yourself a bit more. You will hate yourself for not being consistent. For doing things you know that you don't want to do, another stress is right there. 2. Do less This is one of the hardest things, especially for me. I'm doing too many things at the same time. In itself, doing many different things to figure out what works and what doesn't isn't that had. It's actually quite good. But at some point you need to let go of the things that don't work and focus on the things that work. And that's the hardest part, at least for me. I always try to make everything work. And if you always try to make everything work, you'll usually end up with nothing working at all. 3. Get rid of complicated things There are many complicated things in life. Complicated relationships, complicated jobs, complicated whatever. What all of these things do is that they steal our focus. They add an additional stress layer to our lives and take over some of our brain's bandwidth(;). We desperately need to navigate bandwidth in this crazy and complex world. 4. Read books, not blogs Blogs consist of too much information for our brains to process. Blogs usually leave out the story our brains need. Our brains need a story to remember things. Don't believe me? Try it. What parts of this blog post do you remember? Probably none. All that blogs do is that they clutter our brains with useless information we forget immediately after we read them. A waste of time. There are a number of personal traits which all of us should develop in our earlier life. Question: Young people will hate themselves when _ . - they avoid doing things they dislike - their stress level is high - they know what they dislike doing - their actions conflict with their ideas
(Answer)
their actions conflict with their ideas

Ques: Read the following article and select the best answer. Article: Shanghai Xintiandi Style Mall is filled with a festive mood, featuring large-scale equipment, knit works and various activities, under the theme "kiss". "Kissing is seldom taken as the theme of artworks because in oriental culture, people restrain themselves from expressing their emotions," says Jiang Shan, who is in charge of the exhibition. "Through the exhibition, we hope to encourage people to be confident and brave in expressing their love." Inside the mall, which covers a large area from Zizhong Lu (Road) to Fuxingnan Lu (Road), dozens of color1ful decorations, including balloons, lollipops and lip-shaped decorations are hung on the walls and from the ceiling. Among the decorations, a bright-color1ed wool artwork attracts most eyeballs and brings about a feeling of warmth. The designer, Gu Yeli, says the art piece, Kiss Forest, was inspired by US artist Andy Warhol's 1963 experimental film Kiss, which featured various couples kissing for three and a half minutes each. Gu also organizes a small workshop to teach knitting to children. Artist Wang Xuejun sets up a stainless-steel mirror at the mall's gate leading to Zizhong Lu. Visitors, including men, are invited to put on lipstick and kiss the mirror, thus kissing themselves. The Beast Floral Shop, a flower shop in Shanghai, contributes two walls of flowers that are made into the shape of a book, named Kiss Book. Artifacts of bees and butterflies are fixed among the blossoms, kissing the flowers. The work represents love and harmony in nature. Architect Ma Ke creates a Kiss Bridge with transparent acrylic boards and ceramic fishbowls. Bridges are often spots for dating lovers in traditional Chinese folk stories and the goldfish in the bowls are witnesses of the lovers' kisses. In the south plaza, an18-meter-high interactive tree-shaped light equipment encourages people to kiss. Each kiss turns a certain light on, reminding audiences of their sweet childhood memories of kisses. At the side of the tree is a counter, in which each kiss is counted... Question: The article above probably is taken from a _ . - text book - science and technology magazine - news website - travel leaflet
Ans: news website

Read the following article and select the best answer. Article: When people hear a president speak, they seldom think about others helping to shape the presentation . Today, however, presidents depend on writers such as J. Terry Edmonds to help them communicate effectively. Edmonds is the first African American ever to work as a full-time speechwriter for a U. S. president; he is so the first African American to serve as director of speechwriting for White House. His is an all-American story of success. Edmonds grew up in Baltimore, Maryland; his father drove a truck, and his mother worked as a waitress. A. great reader, Edmonds showed a gift for writing at his high School, Baltimore City College After graduating in 1967 Edmonds went on to Morgan State University Edmonds began his career in business, with jobs in public relations and communications. He joined the world of politics as news secretary for his congressman from Baltimore During Bill Clinton's presidency, he wrote speeches for Health and Human Services Secretary Donna Shalala and worked in a number of job in the White House and in governmental departments President Clinton then appointed him to the office of directory of speechwriting Following the 2000 elections Edmonds returned to Morgan State University as the school's special assistant to the president for 2001-2002 Question: The text is most likely to be found in a book about _ . - popular science - historical events - successful people - Political systems
successful people