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 183 64.2%
2 United States 47 16.5%
3 Germany 32 11.2%
4 Canada 5 1.8%
5 Hong Kong 4 1.4%
6 Netherlands 3 1.1%
7 Singapore 2 0.7%
8 Australia 2 0.7%
9 Belarus 2 0.7%
10 Bulgaria 2 0.7%
11 Kyrgyzstan 2 0.7%
12 Moldova, Republic of 1 0.4%