… The question will be judged by the month with the highest number of COVID-19 deaths in NorthAmerica (defined as the sum of USA and Canada). A COVID-19 death is counted where the primary cause …
… ; African country Other North & South American country European country Asian or Oceanian country
虽说各个国家都在寻求新能源，但是用新能源替代石油等天然资源还有很长的路要走，因此，我认为沙特阿拉伯是从石油中获利，来发展自己，同时沙特阿拉伯正在成为体育、石油、钻石和世界金融的国际中心。
石油期货价格走高 …
