34. This photo shows a physical geographer (or two!) trapped in rock holes. In which type of rock does this kind of landform usually develop?
(A)sandstone
(B)limestone
(C)granite
(D)basalt

5e0ac6a55b6c8.jpg

答案：登入後查看
統計： A(2), B(4), C(0), D(1), E(0) #2135649