A.1~5B.5~10C.10~15D.15~20
A.25% B.50% C.75% D.90%
A.降水、徑流和消耗 B.降水、徑流和滲漏 C.降水、滲漏和蒸發(fā) D.降水、徑流和蒸發(fā)