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 295 62.6%
2 United States 76 16.1%
3 Germany 42 8.9%
4 Hong Kong 20 4.2%
5 Taiwan 16 3.4%
6 Russia 3 0.6%
7 Australia 3 0.6%
8 Canada 2 0.4%
9 Moldova, Republic of 2 0.4%
10 Netherlands 2 0.4%
11 Indonesia 2 0.4%
12 Japan 2 0.4%
13 Singapore 2 0.4%
14 United Kingdom 2 0.4%
15 Lao People's Democratic Republic 1 0.2%
16 Malaysia 1 0.2%