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 1229 88%
2 United States 54 3.9%
3 Germany 32 2.3%
4 Canada 30 2.1%
5 Hong Kong 9 0.6%
6 Netherlands 9 0.6%
7 Japan 6 0.4%
8 Russia 5 0.4%
9 South Africa 5 0.4%
10 Taiwan 4 0.3%
11 United Kingdom 3 0.2%
12 Switzerland 2 0.1%
13 Australia 2 0.1%
14 Brazil 2 0.1%
15 Malaysia 2 0.1%
16 Singapore 1 0.1%
17 Spain 1 0.1%