FRANKFURT, Dec. 21 (Xinhua) -- China's recent stimulus measures came at the right time to boost investor confidence worldwide, a leading German economist has said.

马斯克提出一体化压铸的概念后，特斯拉高管联系了六家铸造公司，只有一家名叫意德拉的公司接受挑战。最终，后者提供的GigaPress让焊接两小时变成压铸两分钟，为Model Y省下了20%的生产成本。

Four people on board were killed when an air ambulance helicopter crashed after colliding with a hospital building in ...