問題詳情
19. Which of the following properties of a river is the closest to the headwaters?
(A) Channel depth
(B) Mean flow velocity
(C) Bed material grain size
(D) Stream discharge volume
(E) Volume of stored alluvium
參考答案
答案：C
難度：困難0.227273
統計：A(2),B(5),C(5),D(0),E(3)