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 94 40.2%
2 United States 69 29.5%
3 Netherlands 18 7.7%
4 India 11 4.7%
5 France 10 4.3%
6 Germany 10 4.3%
7 Russia 9 3.8%
8 Korea, Republic of 2 0.9%
9 Malaysia 2 0.9%
10 Brazil 2 0.9%
11 Canada 1 0.4%
12 Estonia 1 0.4%
13 Hong Kong 1 0.4%
14 Ireland 1 0.4%
15 Japan 1 0.4%
16 Romania 1 0.4%
17 Singapore 1 0.4%