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 396 44.6%
2 United States 210 23.7%
3 Netherlands 165 18.6%
4 Germany 39 4.4%
5 Malaysia 16 1.8%
6 Russia 14 1.6%
7 Canada 13 1.5%
8 Korea, Republic of 10 1.1%
9 France 6 0.7%
10 Singapore 4 0.5%
11 New Zealand 3 0.3%
12 Australia 3 0.3%
13 Belgium 2 0.2%
14 India 2 0.2%
15 Hong Kong 1 0.1%
16 South Africa 1 0.1%
17 Taiwan 1 0.1%
18 Thailand 1 0.1%