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汕头白癜风治疗哪家好些
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发布时间: 2025-06-02 16:34:59北京青年报社官方账号
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  汕头白癜风治疗哪家好些   

Scientists are tracking an object heading toward earth that could enter the planet’s orbit, and they are not entirely sure what it is.The object, named Asteroid 2020 SO, is believed to be man made and not a piece of moon or other planetary debris."I suspect this newly discovered object 2020 SO to be an old rocket booster because it is following an orbit about the Sun that is extremely similar to Earth's, nearly circular, in the same plane, and only slightly farther away (than) the Sun at its farthest point," Dr. Paul Chodas, the director of NASA’s Center for Near Earth Object Studies, told CNN."That's precisely the kind of orbit that a rocket stage separated from a lunar mission would follow, once it passes by the Moon and escapes into orbit about the Sun. It's unlikely that an asteroid could have evolved into an orbit like this, but not impossible,” Dr. Chodas continued.Other publications believe the object could be from Surveyor 2, which was launched in September 1966.Scientists are estimating 2020 SO will enter earth’s orbit in November 2020, then pass by earth at a distance of roughly 30,000 miles in December, before heading back out to space in early 2021.For perspective, commercial planes fly at an altitude of about 7 miles on average.There is no danger to earth posed by 2020 SO, but its slow speed and relatively close pass-by, means scientists can study it. It’s also a reminder that objects sent into space remain in space. 1461

  汕头白癜风治疗哪家好些   

Scripps station WPTV in West Palm Beach, Florida first met Broward County art teacher Annika Dean one year ago. She had just survived the January shooting at Fort Lauderdale-Hollywood Airport. Dean hid behind a smart cart, shielded by a stranger, as Esteban Santiago opened fire, killing five people.SPECIAL SECTION: School shooting in Broward CountyAt the time Dean said she was "most grateful for every moment now I have with my kids.”Dean is grateful again, she says, this time that her son survived the Marjory Stoneman Douglas High School shooting. "There's a school shooting drill. It's really scary, they fired a gun. IT'S NOT A DRILL." At 2:42 p.m. Wednesday afternoon, those were the texts Broward County School teacher Annika Dean started receiving from her 14-year-old son Austin. Austin, a freshman at Marjory Stoneman Douglas High School, was hiding in a JROTC classroom, along with 30 other students."He described that people had been running and screaming and he told me he was on lockdown," said Dean. "He said, 'I love you, just in case.'Dean's own experiences flashed back."I definitely had a sense of what he was dealing with and going through and there was nothing I could do. I was just grateful for every text he was sending me," said Dean. "It's different when it happens to your kid." 1371

  汕头白癜风治疗哪家好些   

SAN YSIDRO, Calif. (KGTV) — In San Ysidro, a popular Mexican restaurant is serving up a big discount amid the ban on on-site dining.Customers at El Rincon restaurant are greeted with a banner hanging from the roof announcing a 50 percent restaurant-wide discount.After coronavirus concerns led to a ban on dining in throughout San Diego County, owners of the family-run restaurant decided to go with a steep discount.RELATED: Grocery stores with hours for seniors amid coronavirus pandemic"We are just happy to see these happy faces in this moment," said manager Silvana Alamiz.Alamiz says business remain down about 60 percent to 70 percent, and they may end up losing money by staying open and offering the discount. But Alamiz is determined to do her part."We will not be making any money. Our goal is to break even. We are here to help our community, to support them and give a little back," said Alamiz.RELATED: Districts providing free meals amid COVID-19 closuresSarina Vega has been at the restaurant two days in a row."It's a really hectic time right now and for it to be affordable, it's a really good idea ... Everyone, everywhere, little by little bit will help a lot," said Vega.Alamiz says the discount will last until the end of the ban on on-site dining.RELATED: Food delivery options in San Diego amid coronavirus closures 1347

  

SAN MARCOS, Calif. (KGTV) -- A San Marcos man had to rush his small dog to the hospital after the animal was bitten by a rattlesnake that somehow managed to get into the home.Ross Margolin says he came home to feed his five dogs when he heard the dogs in the other room barking at something.When he walked into the kitchen, he says he heard the unmistakable rattle. Margolin quickly called a company that specialized in getting snakes out of the house.The man who came to collect the rattlesnake was able to quickly get the two and a half foot long reptile out of the home. Margolin says he later noticed one of his dogs was bitten by the snake.Fortunately, Margolin says his dog quickly recovered after being rushed to the animal hospital for treatment. Margolin says the snake was able to get into the home through an open sliding door.  857

  

School fire drills became popular decades ago after several deadly fires triggered changes in safety codes. Today, teachers and children are preparing for something entirely different: mass shootings.A gunman tried to break into a remote Northern California elementary school on Tuesday but officials say, the quick action of school officials "saved countless lives and children."The building went on lockdown, a teacher rushed to block a classroom's door with a computer and students ducked under their desks. Those responses have become the new normal as more schools are being forced to adapt to more elaborate safety measures.Two thirds of schools in the US conduct active-shooter exercises and nearly all of them have a plan if a shooter comes into the school, the Government Accountability Office found in a recent survey of schools."I think everybody, no matter where you are, needs to think about this. If you're in a school, in a college, if you go to the movies we should all be thinking about what are we going to do if a crisis breaks out right here," said Christopher Combs, FBI special agent in charge, after last week's church massacre in Texas.This year, there has been about one mass shooting every single day, according to the Gun Violence Archive, a non-profit that tracks gun-related violence in the US.'You might lock down, you might try to escape'Sara Rounds and her colleagues recently took part in a series of simulated active-shooter scenarios at their western Indiana school."When I did enter teaching, you know, this was not a thought in my head. But this is where we are now," Rounds, a first grade teacher at Jackson Township Elementary in Clay County, Indiana told CNN affiliate WTHI.Through training programs like ALICE -- Alert, lockdown, inform, counter and evacuate -- Rounds and other teachers are learning how to barricade doors with desks and chairs, run away from gunfire and throw everything from pencils to staplers at a potential shooter."It's not really defense techniques, it's not martial arts of any kind. It basically just gives them options," Jeffrey Fritz, the Indiana school's superintendent told CNN affiliate WTHI."You might alert, you might lock down, you might try to escape, it just depends on the situation," he added.But training teachers is just the first step. The school plans to teach students how to make choices during an active shooter situation."We are going to teach this to the kids in a very kind way, not using harsh words, kid friendly, so I think our kids will really grasp on to this," Rounds said. "This is nothing new here to society, it's in the news a lot. They understand what our world is going through unfortunately."Don't freeze, have a planThose who plan for an active shooting situation are more likely to react quickly rather than freeze, said Katherine Schweit, a former senior FBI official and an active shooter expert."We're not talking about making a decision on what to make for dinner. We're making a decision on how to survive," she said.During the Virginia Tech shooting in 2007 and the 9/11 attacks at the World Trade Center in New York, people delayed evacuations or denied the possible danger rather than respond, according to a 2013 report released by the Federal Emergency Management Agency."People freeze. And if you train yourself to work past freezing, past the moment of hesitation, you save your life. Or you save a life of another," Schweit added.It is recommended that if possible, Schweit said, that victims caught in shootings run as fast and far as possible."I'm a total believer in run, run, run if you can (to) safety. Because you can't get killed if you're not there. But if you have to hide or fight, you have to be prepared to do that," she added.Other security measuresActive shooter training is relatively new in some schools across the US. For years, schools have employed school safety officers, lockdown drills and implemented security systems that require visitors to sign-in and produce photo IDs.After the Columbine shooting in 1999, schools installed metal detectors and shifted restrooms away from entryways. While just a few weeks ago, a private school in Florida began selling bulletproof panels for its students' backpacks.Schools across the country have also created "threat-assessment teams" to prevent shootings by identifying behaviors like mental illness, drug abuse and disruptive conduct in students.Initially, all Virginia public schools were required by law to create those task forces. But now, dozens of schools across the country have adopted the practice.In 2002, Texas State University in San Marcos, Texas created the Advanced Law Enforcement Rapid Response Training (ALERRT) in partnership with several Central Texas law enforcement agencies to address the need for active shooter training.Since its creation, more than 85,000 law enforcement officers have been trained through the program.  4943

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