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 367 49.9%
2 United States 138 18.8%
3 Netherlands 135 18.4%
4 Germany 47 6.4%
5 Canada 10 1.4%
6 Taiwan 8 1.1%
7 Russia 7 1%
8 Ukraine 3 0.4%
9 France 3 0.4%
10 India 3 0.4%
11 Japan 2 0.3%
12 Hong Kong 2 0.3%
13 Australia 2 0.3%
14 Singapore 2 0.3%
15 New Zealand 2 0.3%
16 Romania 2 0.3%
17 Spain 1 0.1%
18 United Kingdom 1 0.1%