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 354 55.2%
2 United States 136 21.2%
3 Netherlands 64 10%
4 Germany 53 8.3%
5 Canada 15 2.3%
6 France 5 0.8%
7 Hong Kong 4 0.6%
8 Norway 3 0.5%
9 India 2 0.3%
10 Korea, Republic of 2 0.3%
11 1 0.2%
12 Brazil 1 0.2%
13 Ukraine 1 0.2%