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 China 121 63.4%
2 United States 38 19.9%
3 Germany 10 5.2%
4 Netherlands 8 4.2%
5 Russia 4 2.1%
6 Taiwan 2 1%
7 Hong Kong 2 1%
8 Korea, Republic of 2 1%
9 Canada 2 1%
10 France 1 0.5%
11 Ukraine 1 0.5%