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 196 58%
2 United States 47 13.9%
3 Germany 32 9.5%
4 Netherlands 15 4.4%
5 Hong Kong 14 4.1%
6 Japan 9 2.7%
7 Russia 4 1.2%
8 Singapore 3 0.9%
9 Taiwan 3 0.9%
10 Norway 2 0.6%
11 United Kingdom 2 0.6%
12 Macao 2 0.6%
13 Mexico 2 0.6%
14 France 2 0.6%
15 1 0.3%
16 Australia 1 0.3%
17 Canada 1 0.3%
18 Moldova, Republic of 1 0.3%
19 Turkey 1 0.3%