BPG致力于知识的发现和传播
Total Visits of This Article
2022 | 总访问次数
排名 国家/地区 数量 占比
1 United States 127 52.7%
2 China 93 38.6%
3 Netherlands 5 2.1%
4 France 4 1.7%
5 Germany 4 1.7%
6 Korea, Republic of 3 1.2%
7 Australia 2 0.8%
8 Canada 1 0.4%
9 Romania 1 0.4%
10 Hong Kong 1 0.4%