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 198 62.5%
2 United States 54 17%
3 Germany 48 15.1%
4 Australia 3 0.9%
5 France 2 0.6%
6 Netherlands 2 0.6%
7 Poland 2 0.6%
8 South Africa 2 0.6%
9 Switzerland 2 0.6%
10 Turkey 1 0.3%
11 Singapore 1 0.3%
12 Moldova, Republic of 1 0.3%
13 Albania 1 0.3%