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 382 59.9%
2 United States 131 20.5%
3 Germany 50 7.8%
4 Russia 33 5.2%
5 Canada 13 2%
6 France 4 0.6%
7 3 0.5%
8 India 3 0.5%
9 Ukraine 3 0.5%
10 Taiwan 2 0.3%
11 Romania 2 0.3%
12 Moldova, Republic of 2 0.3%
13 Morocco 1 0.2%
14 Netherlands 1 0.2%
15 Norway 1 0.2%
16 Singapore 1 0.2%
17 South Africa 1 0.2%
18 Sweden 1 0.2%
19 Switzerland 1 0.2%
20 Malaysia 1 0.2%
21 Hungary 1 0.2%
22 Australia 1 0.2%