IT之家 5 月 1 日新闻，据央视新闻报道，中国空?间站第八?批空间科学实验样品随神舟十九号乘组已经顺遂返回地球
。北京时间 4 月 30 日晚上，空间科学实验样品的交接仪式在中国科学院空间应?用中心举行
。

据先容，?这次随神舟十九号飞船下行的科?学实验样品，涉及空间生命科学、质料科学、新手艺等多个领域的 25 个实验项目，总重量约 37.25 公斤
。

现场交付的实验样品?主要是生命类科学实验样品，由于生物活性的特殊要求，这些样品也是第?一时间从着陆场转运到这里，包括骨细胞和成骨细胞、人支气管上皮细?胞、人和动物?早期胚胎、卵白样品及果蝇等 20 类，是空间站应用与生长阶段?下行生物样品种类最多的一?次
。

IT之家?从?报道获?悉，此次下行的质料类实验样品后续将随返回舱运输回京，包?括高强韧钢、月壤加固质料等 4 类 22 种
。

相关阅读：?

《神?舟十九号航天员乘组平安抵京，将进入隔离恢复期》

《中国空间站首?批在轨繁育果蝇即将返回地球?，已实?现“三代同堂”》

广告声明?：文内含有的对?外跳转链接（包括不限于超链接、?二维码、口令等形式），用于转达更多信息，节约甄选时间，效果仅供参考，IT之家所有文章均包括本声?明
。

• 要增强对下层官兵的政治引领，坚持用党的科学理论建连育人，做好用新时代中国特色社会主义头脑和新时代党的强军头脑武装官兵事情，深化“不忘初心、切记使命”主题教育和“传承红色基因、继续强军重任”主题教育，推进红色基因代代传工程，打牢听党指挥、献身强军事业的头脑政治基本
  。
• ”杨卫说
• 上半財年，行動教育歸屬於上市公司股東的凈利潤為1.36億元，同比增長29.19%
• 上述通知提及，事情组决议在昔时11月1日至12月7日召开业主配合表决事项聚会，并举行投票，表决事项包括：是否赞成通过停车治理步伐、聘用金隅大成物业提供停车治理效劳
• Barbie's Surprising Comeback Has Everything To Do With Race How diversity saved Mattel's iconic doll. Totally Hair Barbie, which debuted in 1990, is the best-selling Barbie doll of all time. She looks exactly like you think: cascades of crimped blonde hair hang to high-heel ready feet, flowing over her stilt legs and vanishing waistline. Meanwhile in 2016 the best-selling-doll in Barbie's Fashionista line was a brunette Latina with a "Curvy,"?build and brown eyes, Mattel told The Huffington Post. She looks like this: Though the Fashionista line is just one piece of the Barbie product universe "?other dolls still look as blonde as ever "?the success of this doll is a clear victory for the toymaking giant. For the past two years, facing rapidly declining Barbie sales, Mattel pushed to diversify its iconic doll away from its classic look. The goal: win back parents turned off by the impossible and widely-criticized beauty standard (skinny, white) Barbie set for girls since the brand debuted in 1959. "the brand was losing relevance,"?said Lisa McKnight, a senior vice president at Mattel who manages the Barbie line. "We knew we had to change the conversation."?It's worked. Barbie sales rose 7 percent to $971.8 million in 2016, putting an end to four consecutive years of steep declines.- The turnaround comes two years after Mattel unveiled the revamped Fashionista line, with Barbies in a range of skin colors and hair colors plus flat feet (previously the feet were shaped like high heels) and less than 12 months after the company introduced "body diversity,"?selling curvy, tall and petite Barbies, kicking off a major conversation in a culture that's long been overly obsessed with a doll. This year the company is introducing an even more diverse range of Barbies, including a tall African-American doll with an Afro, a red-headed petite Barbie with a girl power T-shirt, and a mini-skirted blue-haired Barbie. In all there will be 10 skin tones, 4 body types and 15 hairstyles for Barbie. Mattel's also worked to diversify its American Girls line, last year rolling out a doll with a civil-rights background named Melody Ellison.- Scroll down to see all the new Barbie dolls. Little girls are fickle, for sure, but Barbie's fall from grace and return to coolness was about parents"?complicated feelings about the doll. Winning adults back was key to her resurgence. McKnight says that millennial parents are more particular about what kinds of toys their kids play with. They'r bigger "gatekeepers,"?she said. "they want to not just buy, they want to buy-in,"?McKnight said. Barbie's re-brand included several commercials aimed not at girls, but at their parents: like a recent spot featured during the Super Bowl that showed fathers playing with their daughters and dolls. Mattel's rebranding efforts are clearly paying off. "I have definitely bought more Barbies for my daughter since these new ones came out,"?Lynnette Oursier, a mother in Oak Creek, Wisconsin, told The Huffington Post via Facebook message. She shared a photo of five of her 7-year-old's Barbie dolls in a range of skin tones: "For me it was less about how my daughter would reflect on herself in relation to Barbie (my daughter already is caucasian, blond hair, blue eyes). It was about how she will come to view others."?Sixty-six percent of Americans surveyed by HuffPost/YouGov said they were aware that Mattel is selling a more diverse line of dolls. And an overwhelming majority were on board with the development: Only 8 percent said the diverse dolls comprised a negative change. Perversely enough, diversifying the brand has helped keep the classic version of Barbie alive: Little girls are still playing with the wasp-waisted original version. And they'r watching her on-screen, as well. A 2014 Netflix show called Life In the Dreamhouse, centered around a very blonde doll with many materialistic concerns is popular with girls of a certain age. (A representative from Mattel said it's giving that show a makeover to bring it more in line with Barbie's revamped image.) And you can still see Barbie's look in the style of so many white women, the Taylor Swifts and Kelly Ripas of the world. You see it, in particular, in the conservative women that surround and champion President Donald Trump: Ivanka Trump, her sister Tiffany, Kellyanne Conway, Ann Coulter, Tomi Lahren all have that flash of white teeth and impossibly blonde hair that girls learn at a very young age is a marker of true (white) "beauty."?In these circles Barbie still represents the ideal white woman. That's always been the heart of the Barbie critique: The doll offered girls a single, impossible beauty standard (literally impossible, as some analysis has showed) and women kill themselves trying to meet it. It's hard to name a children's toy that engenders more passion and feeling in adults than a Barbie doll. Over the years, she's been the subject of myriad academic papers and subversive art pieces.-And, though sales are off from the highs of the previous decade, Barbie still far-and-away has the biggest share of the doll market. Of course, a doll isn"t the singular cause of anyone's eating disorder or obsession with juice cleanses or extremely high hair salon bill. Barbie is part of a larger system that enforces a message about what women are supposed to look like, according to Marianne Cooper, a sociologist at the Clayman Institute for Gender research at Stanford University. "not every girl who plays with Barbie is going to come out thinking she's too fat,"?said Cooper, who's best known for contributing the research to Facebook executive Sheryl Sandberg's best-seller Lean In. "But it's one cog in a massive cultural system."?And the message of the system is that a woman's value comes down to her looks. Cooper was positive about the recent changes to Barbie. "the hope is it expands what girls"?possibilities are,"?she said. But she lamented the fact that we are still talking about the way Barbie looks. "We can expand the definition of what's beautiful but we'r still not moving far from the general point,"?Cooper said. Mattel says that Barbie is hardly just about looks, pointing to new dolls that focus on what women do: A game developer Barbie-debuted last year that was designed with input from female engineers. There are role model Barbies that look like African-American ballerina Misty Copeland and "selma"?director Ava DuVernay. Besides, little girls are just playing. "Girls don"t see the line like parents do,"?McKnight said. She's inadvertently hit on the big question: What will these girls think about beauty when they grow up? Mattel can change Barbie, but it can"t shift a whole culture. What happens next is bigger than a toy doll.- How will Donald Trump's first 100 days impact YOU? Subscribe, choose the community that you most identify with or want to learn more about and we'll send you the news that matters most once a week throughout Trump's first 100 days in office. Learn more