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 114 44%
2 United States 75 29%
3 Netherlands 18 6.9%
4 Germany 8 3.1%
5 Korea, Republic of 8 3.1%
6 Poland 7 2.7%
7 Russia 7 2.7%
8 Ghana 5 1.9%
9 Canada 3 1.2%
10 Macao 2 0.8%
11 Hong Kong 2 0.8%
12 India 2 0.8%
13 Spain 2 0.8%
14 Switzerland 2 0.8%
15 Norway 2 0.8%
16 Japan 1 0.4%
17 Lithuania 1 0.4%