BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 273 38.1%
2 United States 229 31.9%
3 Netherlands 98 13.7%
4 Germany 64 8.9%
5 Hong Kong 15 2.1%
6 Canada 11 1.5%
7 Japan 9 1.3%
8 Ireland 5 0.7%
9 France 5 0.7%
10 Singapore 2 0.3%
11 Taiwan 2 0.3%
12 Romania 1 0.1%
13 Bulgaria 1 0.1%
14 Korea, Republic of 1 0.1%
15 Malaysia 1 0.1%