郑州近视手术年龄限制(郑州近视手术原理) (今日更新中)

Thick, black graffiti sprayed onto a Russian polar bear's coat poses an extra threat to an animal already in danger, experts say.Video shared on social media shows a lumbering polar bear whose back had been branded with "T-34," the name of an old Soviet Union tank.The video was posted to Facebook on December 1 by Sergey Kavry, a World Wildlife Fund employee who lives in the remote Russian region.In the comments, Kavry said he obtained the video via WhatsApp from indigenous minorities in Chukotka, in Russia's far east, though it is not clear from the video where it was filmed.Polar bears are having to 620

The Trump administration is waiving federal contracting laws to speed construction of a U.S.-Mexico border wall, moving the president closer to fulfilling a signature campaign promise in an election year but sparking criticism about potential for fraud, waste and abuse. The Department of Homeland Security said Tuesday it'll allow 177 miles of wall to be built faster in California, Arizona, New Mexico and Texas. A 2005 law gives the Homeland Security secretary sweeping powers to waive laws to expedite border barrier construction. Last week, the Trump administration announced that .8 billion in funds appropriated by Congress earmarked for defense projects would be diverted toward funding the border wall. Nearly .5 billion of those funds were intended for projects earmarked for the National Guard, while the rest was intended to be spent on replacing aircrafts and ships. 896

The Scripps National Spelling Bee has a new study resource, “Words of the Champions,” for students participating in spelling competitions occurring between August 2019 and March 2020. The Bee selected the 4,000 words for Words of the Champions from the Bee’s official dictionary, Merriam-Webster Unabridged. Words of the Champions replaces “Spell It!,” a collection of 1,150 words used by students to prepare for spelling bees since 2006. Each year, the Bee will refresh Words of the Champions by replacing 800 words. “Spellers and teachers told us they wanted more words, and we’ve delivered,” said Paige Kimble, executive director for the Bee. “This broader list was designed to challenge and inspire students and is the culmination of a year of research and development by our team.” Nested in Words of the Champions are 450 words sourced from the 18 engaging and grade-appropriate books included in the Bee’s 2020 Great Words, Great Works reading program. By reading the books, students can gain a deeper understanding of the words they are learning to spell. As they begin their spelling bee journey, they will spell many of these 450 words in classroom and school spelling competitions. On Aug. 20, Words of the Champions and other study materials will be available for teachers at Bee-enrolled schools to download from spellingbee.com. On the same day, an Amazon Kindle version of Words of the Champions will be available for purchase by members of the general public. About the Scripps National Spelling Bee: The Scripps National Spelling Bee is the nation's largest and longest-running educational program. The purpose of the Scripps National Spelling Bee is to help students improve their spelling, increase their vocabularies, learn concepts and develop correct English usage that will help them all their lives. Visit 1842

Thousands waking up in New York City and Michigan this morning are still without power.In the Big Apple, 21,500 Con Edison customers have no electricity, though lights and air conditioning are expected to go live by this afternoon, the utility company said in a 274

The Trump administration took hesitant first steps Wednesday to allow the importation of certain drugs from Canada and other countries.The historic move comes after President Donald Trump cast aside typical GOP opposition and pushed his health officials to find a way to approve the Republican governor of Florida's recent request to allow the importation of lower-cost drugs.The Department of Health & Human Services, which has long raised safety concerns over importation, released a Safe Drug Importation Plan that describes two ways certain drugs from abroad could enter the US. It marks a major turnaround for HHS Secretary Alex Azar, who called importation a "gimmick" in the past.But it will likely take a while before these lower-priced medications find their way into patients' hands.Under one scenario, states, pharmacists or drug wholesalers could submit plans to the agency for test projects on how they would import drugs approved by Health Canada. But the method also sets up many hurdles, including saying the tests would be limited in time and require regular reporting to ensure safety and costs are being met.The second pathway would allow manufacturers to import lower-cost versions of the drugs that they sell in foreign countries. Agency officials said drug makers are interested in doing this but have not been able to because of contracts with other players in the supply chain.Under the new plan, Insulin, however, cannot be imported from Canada, likely disappointing diabetics, some of whom have to travel north to purchase the costly, lifesaving medicine there.But HHS clearly put the burden on states and manufacturers to convince it that importing drugs would be safe for consumers and save them money. For instance, it would be up to states to negotiate with Canadian authorities to allow their drugs to be sent to the US, said Azar. 1878

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