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I'm taking a test and have to guess the right answer to the question after the article. Article: Freezing weather can mean frostbite and _ unless a person is prepared. Do you know how to stay warm, dry and safe in such cold winter? Frostbite is damage that happens when skin is exposed to extreme cold for too long. It mainly happens on the hands, feet, nose and ears. People with small cases of frostbite that affect only the skin may not suffer any lifelong damage. But if deeper tissue is affected, a person is likely to feel pain every time the area gets cold. If blood vessels are damaged, people can suffer an infection of gangrene . Sometimes, doctors have to remove frostbitten areas like fingers and toes. Hypothermia happens when the body cannot produce as much heat as it releases. The condition comes on slowly. Signs of hypothermia include uncontrollable shaking, very slow breathing and unclear thinking. If not treated properly, Hypothermia can be deadly. A simple way to avoid cold-related injuries is to remember four basic steps. Think of COLD -- C.O.L.D. The C stands for cover. Wear a hat and a scarf to keep heat from escaping through the head, neck and ears. And wear mittens instead of gloves. In gloves, the fingers are separated, so the hands might not stay as warm. The O stands for overexertion . Avoid activities that will make you sweaty. Wet clothes and cold weather are a bad mix. L is for layers. Wearing loose, lightweight clothes, one layer on top of another, is better than wearing a single heavy layer of clothing. Also, make sure outerwear is made of material that is water-resistant and tightly knit. Can you guess what the D in C.O.L.D. stand for? D is for dry. In other words, stay as dry as possible. Pay attention to the places where snow can enter, like the tops of boots, the necks of coats and the wrist areas of mittens. And here are two other things to keep in mind -- one for children and the other for adults. Eating snow might be fun but it lowers the body's temperature. And drinking alcohol might make a person feel warm. But what it really does is weaken the body's ability to hold heat. Question: Which of the following is NOT true about the C.O.L.D. according to the text? Options: A: They are four basic steps to keep warm. B: Gloves can't protect us from cold sometimes. C: We should keep ourselves as dry as possible. D: They can protect us from injuries completely.
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: Just put your special clothes on in the morning and you could jump 3 meters into the air and even carry more than 60 kilograms without getting tired. The walk to school would be very, very easy. Such _ clothing is one of the products that could be created using "wearable robotics" technology. Designed to improve a person's senses and skills, the device could be as simple as a hearing aid. Or it could be a full-body suit that senses what you're going to do, then helps you do it better. "A superman suit would be the final result in wearable robot i cs ",s a id Francois Pin, head of robotics and energy systems at the Oak Ridge National Laboratory , US. While these suits are at least ten years away, in some areas the technology is already in use. Researchers are developing artificial- arms and legs that allow old,disabled or injured people to move freely. Thus US Army is interested in using wearable robot legs to help soldiers run faster, carry more equipment and be stronger in battle. Jobs that involve lifting heavy loads or saving lives from the rubble of an earthquake could also become much easier. A robot is a device that responds to a command. You're probably with simple robots, such as toy cars or airplanes that respond to buttons you push on a remote control. Wearable robotics goes further. Instead of just receiving information through a wire or remotecontrol- the robotic device can send information back to its controller. Suppose you wore a sleeve that has sensors where your joints are. Every time you move your arm, the sleeve senses your movements and sends the information to a robot, which then moves its arm just as you did. When the robot hits or touches something, it sends a signal back to the sleeve and you sense the action. In this way,scientists are working to wrap the robot around the person. Their goal is to make the sleeve, shoe or suit help you do what you want to do. Question: Products resulting from this wearable robotics technology do not include _ . Options: A: remote controls B: hearing aids C: wearable robot legs D: superman suits
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B

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I'm taking a test and have to guess the right answer to the question after the article. Article: Ask a group of elderly people what it was about their lives that made them happiest overall, and they'll probably mention some warm relationships with family and friends. If you're satisfied with your social life, according to psychologists, you tend to be satisfied with life in general. From the point of my 50s, I'd say that sounds about right. Some of my happiest moments are the ones I spend with my husband, a few close relatives, and a handful of very good friends who know me well and like me anyway. But the more I read about how social media are interfering with good old-fashioned friendship, creating virtual bonds that can't quite take the place of real ones, the more I wonder just how today's 20-somethings will look back on their own lives when they're my age. After all, much crucial relationship building work is done in the 20s. According to research by the late Bernice Neugarten of the University of Chicago, who helped launch the academic study of human development, people choose most of their adult relationships, both friends and lovers, between the ages of 22 and 28. The friends we make in our 20s are not only best friends forever; they're also our first truly chosen friends. And choosing how to commit to these friendships is an essential psychological task of the 20s. But with so much of friendship in this age group now being developed online, an essential question is what the effect of that interaction is. A study, conducted in 2010 by Craig Watkins and Erin Lee of the University of Texas at Austin, investigated the Facebook habits of 776 young people between the ages of 18 and 35. "Whether it is a wall post, a comment, or a photo," they wrote, "young people's engagement with Facebook is driven, primarily, by a desire to stay connected to and involved in the lives of friends who live close by, far away, or have just entered into their lives." This kind of constant contact can be efficient, but it can also be upsetting. For one thing, it adds a new layer of concern to a young person's... Question: What was the aim of the study conducted by Craig Watkins and Erin Lee? Options: A: To know about the 776 young people's Facebook habits. B: To find out how social media affect real-world social life. C: To help young people stay connected to the lives of friends. D: To investigate what kind of people prefer online interactions.
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B