如何在dwr的回调函数中传递多个参数

function selectCountry(countryId) {
      var num = countryId.indexOf("Country");
      var prefix = countryId.substr(0,num);
      var countryId = document.getElementById(countryId).value;

      loveService.getProvincesByCountry(countryId, function(data){
      callBackProvices(data,prefix);
   });
   resetProvince(prefix+"Province");
   resetCity(prefix+"City");
  }

  function callBackProvices(data, prefix) {
      var provinceId = prefix+'Province';
   DWRUtil.removeAllOptions(provinceId);
   DWRUtil.addOptions(provinceId, arrayObject, 'value', 'name');
   DWRUtil.addOptions(provinceId, data);
  }