2012年12月，党的十八大闭幕不久，习近平总书记来到地处太行山深处的河北阜平县，进村入户看真贫。
US space agency Nasa will fast-track plans to build a nuclear reactor on the Moon by 2030, according to US media.
。关于这个话题，夫子提供了深入分析
Ранее стоматолог-терапевт, пародонтолог Ирина Серегина рассказала, что, если не обновлять зубную щетку вовремя, качество очистки полости рта заметно снижается. Она назвала оптимальную частоту смены этого предмета личной гигиены.
For this story, WIRED reviewed dozens of NASA documents, including backup plans and contingencies for emergencies, and spoke to more than a dozen people, including three astronauts who’ve visited the ISS, and no one seemed that freaked out. One astronaut said the most worrisome scenario that actively crossed his mind in orbit was getting a toothache. The ISS has had some emergencies, including a first-ever medical evacuation in January, but generally things have been remarkably stable. In fact, one of the most impressive things about the ISS is that nothing very dramatic has ever happened to it. No experiment has gone too haywire. It hasn’t been hit by an asteroid.