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 61 33.7%
2 United States 51 28.2%
3 Japan 12 6.6%
4 Netherlands 9 5%
5 India 9 5%
6 United Kingdom 7 3.9%
7 France 7 3.9%
8 Singapore 6 3.3%
9 Germany 5 2.8%
10 Brazil 3 1.7%
11 Russia 3 1.7%
12 Spain 2 1.1%
13 Taiwan 2 1.1%
14 Canada 2 1.1%
15 Portugal 1 0.6%
16 Moldova, Republic of 1 0.6%