High-stakes talks between the US and Iran over the future of Tehran’s nuclear programme ended on Thursday without a deal, as the White House weighs a military operation that would mark its largest intervention in the Middle East in decades.
平均值和中位数的背离，进一步印证了上述趋势——一方面，研发人员数量平均值由上年的722人提升至731 人；另一方面，研发人员的中位数却从上年的216 人降至213 人。这意味着，少数研发密集型企业大量增聘研发人员，多数中小型企业的团队规模维持稳定或略有收缩。。同城约会对此有专业解读
Increased burning of fossil fuels like coal and oil over the last two centuries has released greenhouse gases like CO2 into the atmosphere, which have warmed our planet.，更多细节参见搜狗输入法下载
一株小草改变世界，一纸经方传承千载，一缕药香穿越古今，一根银针贯通中西。古老的中医药薪火相传、历久弥新，成为一张亮眼的“中国名片”。