6. Despite the seemingly ________ nature of the Earth’s lithosphere when viewed over a human lifespan, geological records confirm that tectonic plates are in a state of constant, albeit gradual, flux.
(A) mutable
(B) capricious
(C) immutable
(D) volatile
答案:登入後查看
統計: A(2), B(7), C(11), D(7), E(0) #3861823
統計: A(2), B(7), C(11), D(7), E(0) #3861823