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 198 45.2%
2 United States 152 34.7%
3 Germany 39 8.9%
4 Canada 13 3%
5 Singapore 7 1.6%
6 Hong Kong 5 1.1%
7 Korea, Republic of 5 1.1%
8 Malaysia 3 0.7%
9 Spain 3 0.7%
10 France 3 0.7%
11 Taiwan 2 0.5%
12 Netherlands 2 0.5%
13 Australia 2 0.5%
14 Ecuador 2 0.5%
15 Japan 1 0.2%
16 Ukraine 1 0.2%