List all the average reviews of Chinese restaurants for each county from highest to lowest.
Chinese restaurant refers to food_type = 'chinese'; average review refers to divide(sum(review), count(review))
SELECT AVG(T1.review) FROM generalinfo AS T1 INNER JOIN geographic AS T2 ON T1.city = T2.city WHERE T1.food_type = 'chinese' GROUP BY T1.id_restaurant ORDER BY AVG(T1.review) DESC
database name:db_id restaurant
geographic table geographic Cols: city dtype text, country dtype text, region dtype text, 
generalinfo table generalinfo Cols: id restaurant dtype integer, label dtype text, food type dtype text, city dtype text, review dtype real, 
location table location Cols: id restaurant dtype integer, street number dtype integer, street name dtype text, city dtype text, 
