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 411 69.7%
2 United States 58 9.8%
3 Germany 45 7.6%
4 Netherlands 36 6.1%
5 Hong Kong 14 2.4%
6 Taiwan 12 2%
7 Japan 4 0.7%
8 India 3 0.5%
9 Australia 2 0.3%
10 Russia 2 0.3%
11 New Zealand 1 0.2%
12 Poland 1 0.2%
13 France 1 0.2%