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 424 54.6%
2 Netherlands 141 18.1%
3 United States 139 17.9%
4 Germany 33 4.2%
5 Canada 12 1.5%
6 Japan 6 0.8%
7 France 5 0.6%
8 Thailand 3 0.4%
9 Poland 2 0.3%
10 Russia 2 0.3%
11 Singapore 2 0.3%
12 Taiwan 2 0.3%
13 Lao People's Democratic Republic 2 0.3%
14 Malaysia 2 0.3%
15 New Zealand 1 0.1%
16 Hong Kong 1 0.1%