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 United States 73 39.5%
2 China 58 31.4%
3 Netherlands 19 10.3%
4 Germany 8 4.3%
5 Hong Kong 5 2.7%
6 Malaysia 5 2.7%
7 Russia 5 2.7%
8 Belgium 3 1.6%
9 Japan 3 1.6%
10 Korea, Republic of 3 1.6%
11 India 1 0.5%
12 France 1 0.5%
13 Singapore 1 0.5%