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 155 51.3%
2 United States 72 23.8%
3 Germany 46 15.2%
4 Canada 4 1.3%
5 Malaysia 4 1.3%
6 Singapore 4 1.3%
7 Russia 3 1%
8 Hong Kong 3 1%
9 India 3 1%
10 Korea, Republic of 3 1%
11 France 2 0.7%
12 Australia 1 0.3%
13 Ukraine 1 0.3%
14 Netherlands 1 0.3%