A.1.82g/cm3 B.1.83g/cm3 C.1.70g/cm3 D.17.90g/cm3
A.0.8g/cm3 B.0.08g/cm3 C.1.08g/cm3 D.1.98g/cm3
A.脆性巖層 B.砂巖或泥(頁(yè))巖 C.碳酸巖 D.所有地層