What is the direction of the littoral (also called longshore) drift?
(A) NE
(B) NW
(C) SE
(D) SW 

答案:登入後查看
統計: A(0), B(7), C(3), D(2), E(0) #2137005
統計: A(0), B(7), C(3), D(2), E(0) #2137005