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C
(Question)
The passport photographs of the future could turn out to be more than just another pretty picture if a new computer technique developed by Israeli scientists catches on. Researchers at Ben-Gurion University, in Israel, have invented a way to hide information such as a fingerprint or signature in color images. They believe this could improve passport safety or be used to produce product bar codes or designs that cannot be seen. "The papers can be faxed, scanned and reprinted without hidden data disappearing," New Scientist magazine said last week. Joseph Rosen and a team of scientists worked out the new instrument by creating a mathematical model. The model turns a fingerprint or signature into a series of numbers which are used to shape the dots that make up a color picture. "Each dot can be forced out of the usual place slightly without noticeably changing the final appearance of the image," the magazine said. Several images that can be hidden in a single picture are scanned into a computer which does the work. The hidden images or fingerprints cannot be shown until the picture is scanned again. The computer rebuilds the fingerprint by measuring the displacement of the dots in the picture. The magazine said that if he model is used for passport checkpoints the picture can be unscrambled to show the fingerprint or signature and checked against the person holding the passport. The researchers are now working on a handheld, and instrument which could make unscrambling the hidden information easier. The writer probably got the information about the new passport photos from _ . A) Israeli scientists B) a radio or TV C) a newspaper D) a magazine
(Answer)
D
Ques: Ever wonder why sometimes a hug is all you need ? You can't explain it , but there's just something comforting about being in your wife's arms after a rough day or giving mom a hug after a long time apart . A new study says the warm feeling in a hug is more than just skin deep . Researchers from the University of California , Berkeley believe that this loving feeling could have anti-aging benefits . Oxytocin , sometimes referred to as the " love hormone " or the " trust hormone , " is responsible for those indescribable feelings we get when we're bonding with a lover or a loved one . Levels of the hormone drop as we age , and evidence suggests that could be a contributing factor to the _ of our bodies as we age . Muscle loss in particular is one of the major side effects of aging , with our bodies losing up to 5 percent of our muscle mass each decade past our 30s . In the study , published in the journal Nature Communications , researchers injected oxytocin into older mice with muscle damage . The older mice had lower levels of the homeone than younger mice initially . But after nine days , the older mice who were given the hormone healed better than those who did not . In fact , their ability to repair muscle damage was up to 80 percent that of the younger mice . The results were not only fast-acting , but provide hope for future uses of the hormone in a variety of anti-aging capacities . " This is good because it demonstrates that extra oxytocin improves aged tissue stem cells without making muscle stem cells divide uncontrollably , " study co-author Wendy Cousins said in a statement . Previous uses of anti-aging molecules have also been associated with higher cancer risk , but researchers are hopeful that oxytocin can be useful in humans without this risk . In the future , researchers of Berkeley say oxytocin could be used to fight other age-related health issues by improving bone health and even being used as an alternative to hormone replacement therapy . Now go out and give someone a hug . What can be a suitable title for the passage ? A) When Do We Need A Hug ? B) A New Anti-aging Product C) Hugs Having Healing Power D) How Can We Grow Muscles ?
Ans: C
(Q).
A Brooklyn man who was quarreling with his girlfriend yesterday threw a dog off the balcony of her 23rd-story apartment in TriBeCa, killing it, the police said. The man, John Jefferson, 43, of Bedford-Stuyvesant, has been charged with robbery, criminal possession of a weapon and animal cruelty, the police said. He was taken to Bellevue Hospital Center yesterday for psychiatric evaluation , they said. The incident began shortly before 11 a.m., the police said, when Mr. Jefferson went to visit his girlfriend, Eugenia Miller, 41, at her apartment on 80 North Moore Street. She had filed a police report on Friday accusing Mr. Jefferson of stealing from her, but yesterday she allowed him in and they began arguing, the police said. Mr. Jefferson threatened Ms. Miller with a knife, and she called 911, the police said. When officers arrived at her door, she ran into the hallway and Mr. Jefferson stayed in the apartment, they said. Mr. Jefferson began throwing Ms. Miller's things off the balcony, first the television, the air-conditioner and clothes, then her dog, Ribsy, the police and witnesses said. The dog had lived in the neighborhood for more than a decade and was well liked by children. "He was like a person and he would hang out with us guys or go visit kids at the basketball court," said neighbors. The man was taken to hospital because _ . A) he killed a pet dog B) he was badly injured C) his girlfriend asked to do so D) he needed a psychiatric evaluation
(A).
D
Ques: Remembering names is an important social skill . Here are some ways to improve it. Remember and repeat in conversation . When you hear a person's name , repeat it. Immediately say it to yourself several times without moving your lips . you could also repeat the name in a way that sounds natural. Ask the other person to recite and repeat . You can let other people help you remember their names. After you've been introduced to someone , ask that person to spell the name and pronounce it correctly for you . Most people will be glad by the effort that you're making to learn their names. Admit that you don't know .You may tell them that you can't remember someone's name . Most of them will feel glad if you say, "I'm working to remember your names better . Yours is right on the tip of my tongue . What is it again?" Use associations . Link each person yon meet with one thing you find interesting or unusual. For example, you can remember in this way : "Vicki Cheng ----tall, black hair." To remember their names , you can write them on a small card as soon as possible. Limit the number of new names you learn at one time. When meeting a group of people, you'd better remember just two or three names. Free yourself from remembering every one. Few of the people expect you to remember their names. Another way is to limit yourself to learning just first names. Last names can come later. Go early . Consider going early to meetings , parties and classes . Sometimes just a few people show up on time . There're fewer names for you to remember. And as more people arrive , you can hear them being introduced to others . When you meet a group of people, it is better to remember _ . A) all their names B) a few names first C) just their last names D) as many names as possible
Ans:
B