A.大于0.9 B.0.7~0.9 C.0.6~0.7 D.低于0.6
A.大塊狀深成巖 B.大塊狀噴出巖 C.有機沉積巖 D.沉積巖變質(zhì)巖
A.深成巖 B.噴出巖 C.沉積巖 D.變質(zhì)巖