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 57 45.2%
2 Germany 14 11.1%
3 United States 13 10.3%
4 Japan 11 8.7%
5 Netherlands 9 7.1%
6 Korea, Republic of 7 5.6%
7 Belarus 3 2.4%
8 Canada 2 1.6%
9 Australia 2 1.6%
10 New Zealand 2 1.6%
11 Ukraine 2 1.6%
12 Macao 1 0.8%
13 Argentina 1 0.8%
14 Hong Kong 1 0.8%
15 India 1 0.8%