ACE2 is also considered the main site of entry of SARS-CoV-2 into cells [40,49,70]. In previous outbreaks of SARS-CoV, which also use ACE2 as an entry point, the virus was detected in the brains of infected patients but reported almost exclusively in neurons [21,32,63,78]. Indeed...
以下哪些属于毫米波雷达的特点？食品厂用自动包装机包装糖果,每袋标准重量为500克,每隔- 定的时间需要检验机器工作情况。现抽取 10袋,测其重量(单位: g),并计算出样本均值是502克,标准差为克。假定重量服从正态 分布,试问在显著性水平的水平下((9)=),机器工作是否正常 结论是()