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 344 46.1%
2 United States 197 26.4%
3 Netherlands 82 11%
4 Germany 62 8.3%
5 Sweden 17 2.3%
6 Canada 10 1.3%
7 Malaysia 7 0.9%
8 France 7 0.9%
9 Thailand 3 0.4%
10 Ukraine 2 0.3%
11 United Kingdom 2 0.3%
12 Australia 2 0.3%
13 Belgium 2 0.3%
14 Korea, Republic of 2 0.3%
15 Lithuania 2 0.3%
16 Singapore 2 0.3%
17 India 1 0.1%
18 Bulgaria 1 0.1%
19 Taiwan 1 0.1%
20 Russia 1 0.1%