A.1:200萬 B.1:300萬 C.1:400萬 D.1:500萬
A.(1)(2)(4) B.(2)(3)(5) C.(1)(2)(3) D.(3)(4)(5)
A.粘土質(zhì) B.砂質(zhì) C.鈣質(zhì) D.石膏質(zhì)