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 236 49.4%
2 United States 152 31.8%
3 Germany 45 9.4%
4 Canada 17 3.6%
5 Netherlands 8 1.7%
6 Russia 4 0.8%
7 Singapore 3 0.6%
8 Hong Kong 3 0.6%
9 France 2 0.4%
10 Switzerland 2 0.4%
11 Uzbekistan 1 0.2%
12 1 0.2%
13 Australia 1 0.2%
14 India 1 0.2%
15 Japan 1 0.2%
16 Malaysia 1 0.2%