接触频次

  • 网络F-Frequency
接触频次接触频次
  1. 居民接触疫水频次、指数A、指数B分别下降了63.71%、33.3%、13.48%。

    After health education the frequency , index A , index B decreased by 63 . 71 % , 33 . 3 % , 13 . 48 % respectively among local residents .