35. What does this film show?
(A)annual migration of Orca whales
(B)ocean surface currents
(C)thermo-haline circulation
(D)major global wind systems5e0ac6db80cc4.jpg5e0ac6f3a30c2.jpg

答案:登入後查看
統計: A(1), B(3), C(2), D(1), E(0) #2135650