A.推移質(zhì)B.懸移質(zhì)C.推移質(zhì)和懸移質(zhì)D.河床質(zhì)
A.小于0.1mmB.0.1-0.5mmC.0.5-2.0mmD.2.0-3.0mm
A.3~28°B.4~27°C.5~26°D.6~25°