Research about prevention, and waste water moats, and then fix the problem. We have collected the data by querying a query, this series is a number of 25th satisfaction questionnaire after passengers has resolved the problem of the waste water in the moat, then. We asked for the cooperation of students attending secondary school year 4/2 to answer the questionnaire. After the data from the query and used as percent.The results appear below the table.
การแปล กรุณารอสักครู่..