A.10%B.15%C.20%D.25%
A.用水預(yù)報(bào)B.氣象預(yù)報(bào)C.洪水預(yù)報(bào)D.水文氣象預(yù)報(bào)
A.降雨預(yù)報(bào)B.徑流預(yù)報(bào)C.天氣預(yù)報(bào)D.用水預(yù)報(bào)