河北立体猫牙(辽宁小儿胸腔穿刺训练模型) (今日更新中)

The Dow fell 460 points Friday as a leading indicator of a US recession and concern about a global slowdown spooked investors.The index shed 1.8%, while the S&P 500 closed down 1.9%. The Nasdaq plunged 2.5%. It was the worst performance for all three major indexes since January 3.The yield on 3-month Treasuries rose above the rate on 10-year Treasuries for the first time since 2007 — a shift that scared Wall Street. Investors have piled back into stocks after a sell-off in late 2018.The flattening yield curve, or the difference between short- and long-term rates, has worried investors for months. A narrowing spread is typically seen as sign that long-term confidence in the economy is waning, which could signal an eventual economic contraction.Friday's flip added to pressure on the Dow that was building before US markets opened.The index stumbled at the bell on poor manufacturing data from Germany, which also spelled trouble for the country's bond market. The yield on Germany's benchmark 10-year government bond fell below zero for the first time since October 2016.All of that news is fueling Wall Street's ongoing concerns about slowing global growth.White House economic adviser Larry Kudlow told CNBC last year that the spread between 3-month and 10-year Treasury yields was important to watch."It's actually not 10s to 2s; it's 10s to 3-month Treasury bills," Kudlow 1402

The Hubble Telescope can sure find some scary images of deep space in a video released by NASA on Monday. The images were of the twin galaxies AM 2026-424, which is a mere 724 million light-years away from Earth. That means the light we are seeing on Earth was emitted 724 million years ago.From Earth, the colliding galaxies appear to form the shape of a face, with two "eyes," which make up the core of the galaxies."Each 'eye' is the bright core of a galaxy, one of which slammed into another. The outline of the face is a ring of young blue stars. Other clumps of new stars form a nose and mouth," NASA said in a statement.""Although galaxy collisions are common—especially back in the young universe—most of them are not head-on smashups, like the collision that likely created this Arp-Madore system," NASA added. "The violent encounter gives the system an arresting 'ring' structure for only a short amount of time, about 100 million years. The crash pulled and stretched the galaxies' disks of gas, dust, and stars outward. This action formed the ring of intense star formation that shapes the nose and face." 1129

The Florida man accused of sending mail bombs to CNN offices and prominent Democrats pleaded guilty on Thursday in Manhattan federal court to 65 felony counts, including using weapons of mass destruction in an attempted domestic terrorist attack.Cesar Sayoc, 57, admitted in court to having mailed 16 explosive devices to a variety of officials -- primarily Democrats, including former Presidents Barack Obama and Bill Clinton and Sens. Cory Booker and Kamala Harris; and major Democratic donors, including George Soros and Tom Steyer -- and to CNN's offices in October 2018.None of the devices detonated and no one was injured. After 647

The Food and Drug Administration has granted emergency approval to a new coronavirus test in the hopes speeding up the process of testing patients for the disease, according to The Wall Street Journal and Bloomberg.The FDA gave "emergency use authorization" to tests that run on 291

The Eagles will perform their iconic “Hotel California” album in its entirety while on tour in 2020. Each night, Don Henley, Joe Walsh, Timothy B. Schmit, Deacon Frey and Vince Gill will play the songs from the album from beginning to end with an accompanying orchestra and choir. Afterwards, the American rock band will perform an additional set of their greatest hits. The tour will go to the following cities on the following dates: · Atlanta, GA – State Farm Arena – Friday, Feb. 7· Atlanta, GA – State Farm Arena – Saturday, Feb. 8· New York, NY – Madison Square Garden – Friday, Feb. 14· New York, NY – Madison Square Garden – Saturday, Feb. 15· Dallas, TX – American Airlines Center – Saturday, Feb. 29· Dallas, TX – American Airlines Center – Sunday, March 1· Houston, TX – Toyota Center – Friday, March 6 · Houston, TX – Toyota Center – Saturday, March 7· San Francisco, CA – Chase Center – Saturday, April 11· San Francisco, CA – Chase Center – Sunday, April 12· Inglewood, CA – “Fabulous” Forum – Friday, April 17· Inglewood, CA – “Fabulous” Forum – Saturday, April 18The shows are scheduled to begin at 8 p.m., with a brief intermission.Tickets go on sale beginning Friday, Oct. 18 at 10 a.m. via Ticketmaster. All times are local. American Express card members can buy tickets before the general public beginning Monday, Oct. 14 at 10 a.m. through Thursday, Oct. 17 at 10 p.m. The Eagles recently performed three sold-out performances of “Hotel California,” the third best-selling U.S. album in history, in Las Vegas. Billboard magazine lauded the opening night concert. “With no exception, the songs have aged well, but how could they fail with the Eagles’ five-part harmony and five guitar-approach…” wrote the magazine. “(Henley’s) voice sounded as strong and pliant as it ever has, easily hitting the highest of notes, while retaining his trademark huskiness." 1890

来源：资阳报