A.黃土峁 B.黃土沖溝 C.黃土柱 D.黃土崩塌堆積體
A.0.5m B.1.0m C.1.5m D.2.0m
A.土中含易溶鹽的質(zhì)量占土骨架質(zhì)量的百分數(shù) B.土中含可溶鹽的總質(zhì)量占土骨架質(zhì)量的百分數(shù) C.土中含可溶鹽的總質(zhì)量占土總質(zhì)量的百分數(shù) D.土中含易溶鹽的質(zhì)量占土總質(zhì)量的百分數(shù)