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 837 80.2%
2 United States 92 8.8%
3 Germany 32 3.1%
4 Hong Kong 20 1.9%
5 Canada 13 1.2%
6 Singapore 9 0.9%
7 Netherlands 8 0.8%
8 Russia 7 0.7%
9 Taiwan 6 0.6%
10 France 5 0.5%
11 Japan 3 0.3%
12 Malaysia 3 0.3%
13 Korea, Republic of 1 0.1%
14 Serbia 1 0.1%
15 Peru 1 0.1%
16 India 1 0.1%
17 Italy 1 0.1%
18 Finland 1 0.1%
19 Australia 1 0.1%
20 Brazil 1 0.1%