querySymbols = function querySymbols(syms){
    let query = _.map(syms, x => conf.market[x.substr(0,3)] + x).join(',');
    refreshData(syms, query);
    setInterval(refreshData.bind(this, syms, query), 3600);
}
Query symbols' price info
@param  {Array} syms  Symbols array to query
@return {Array}       Basic info array of queried symbols