徐州四维哪家有(徐州那有4维彩超) (今日更新中)

IMPERIAL BEACH, Calif. (KGTV) — Mar Vista High School operated under heightened security Tuesday due to a possible threat.Instruction continued in classrooms but Mar Vista's doors were kept locked as part of the security measures, according to Manuel Rubio, public information officer with Sweetwater Union High School District.The campus resumed normal operations just before 1 p.m.The school district was working with the San Diego Sheriff's Department to investigate a possible threat posted to social media, Rubio said.The threat was later determined to be unfounded, though the campus would have increased security through the day, according to Rubio. 679

How does someone who relies on his voice for a living, such as an auctioneer, keep it in top form?You may be surprised to find out what it takes to keep talking up success.As exciting as it is to be in the seats during a live auction, imagine being the man behind the microphone.  "I just love excitement," said professional auctioneer John Korrey. "It's an art."Korrey has been a professional auctioneer for more than 20 years, time he's spent solidifying his sound."There's not any two auctioneers that sound alike," said Korrey. "I can sit here and say countfive, 10, 15, 20, but when I put a chant to it, 'I bid five dollar bid now ten now fifteen fifteen twenty now twenty twenty thirty,' see I'm rolling my tongue and I'm adding some rhythm and I'm breathing."Leading auctions, sometimes for hours on end, has taught Korrey one important thing."We're not a machine," said Korrey. "If it's equipment breaks ... a starter down ... you put a new one in."When my voice goes down I have no wage, I'm done," he said.That's why Korrey spends so much time at the Colorado Voice Clinic, working with Kathe Perez to make sure his voice is okay."Let's start off with an easy feeling of breathing," Perez instructed Korrey. Then the two go through vocal exercises together. "Let's bring it down a key," Perez said. "A big brown bug bit a big brown bear, a big brown bug bit a big brown bear."It's not just vocal exercises that keep his voice in check. A camera goes down Korrey's throat and gives doctors a look at his vocal chords in action."The strobe exam is an artificial form of slow motion that lets us look at the actual vocal folds as they produce sound," said Dr. David Opperman with Presbyterian/St. Luke's Medical Center. "We can pick up subtle abnormalities in the way the chords are moving, if there's a tension difference between the right and left side.  And it's really revolutionized what we do in the voice industry."Opperman said it's not just people like John who need to take care of their voice. Really it's anyone from teachers to customer service operators who does a lot of talking. He says staying germ-free, resting your voice for a time and rinsing your nose with salt water, can all help.From old-school voice training, to high-tech analysis, who knew it takes a combination of care you can't see from the stage, to keep Korrey's voice, and the auction, going strong. 2468

Humanity's first visit to a star began this weekend. NASA's Parker Solar Probe will explore the sun's atmosphere in a mission that launched early Sunday. This is the agency's first mission to the sun and its outermost atmosphere, the corona.After being delayed on Saturday, the probe successfully launched at 3:31 a.m. ET Sunday from Cape Canaveral, Florida, on a United Launch Alliance Delta IV Heavy rocket, one of the world's most powerful rockets.Although the probe itself is about the size of a car, a powerful rocket is needed to escape Earth's orbit, change direction and reach the sun.The launch window was chosen because the probe will rely on Venus to help it achieve an orbit around the sun.Six weeks after launch, the probe will encounter Venus' gravity for the first time. It will be used to help slow the probe, like pulling on a handbrake, and orient the probe so it's on a path to the sun. 913

I’m absolutely devastated. This is beyond heartbreaking. Chadwick was special. A true original. He was a deeply committed and constantly curious artist. He had so much amazing work still left to create. I’m endlessly grateful for our friendship. Rest in power, King?? pic.twitter.com/oBERXlw66Z— Chris Evans (@ChrisEvans) August 29, 2020 345

I’m happy to report that Jill and I have tested negative for COVID. Thank you to everyone for your messages of concern. I hope this serves as a reminder: wear a mask, keep social distance, and wash your hands.— Joe Biden (@JoeBiden) October 2, 2020 256

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