而症状的严重性有一个评分系统，需要根据五个指标来评估，也就是：孩子的意识状态、安静或烦躁时的皮肤黏膜是否青紫、安静或烦躁时有无喉鸣、肺部进气状态以及吸气性凹陷的程度进行打分。

Nvidia on Wednesday became the first company to ever hit the market value of 4 trillion U.S. dollars as its stock jumped more than 2 percent during the morning trading. Nvidia is now the world's most ...