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 462 53.7%
2 Netherlands 150 17.4%
3 United States 148 17.2%
4 Germany 52 6%
5 Russia 17 2%
6 Canada 15 1.7%
7 India 5 0.6%
8 France 4 0.5%
9 Brazil 3 0.3%
10 Australia 1 0.1%
11 Colombia 1 0.1%
12 Hong Kong 1 0.1%
13 Moldova, Republic of 1 0.1%
14 Norway 1 0.1%