未知题型
地表径流在谷线或山洼处汇集，形成大流速径流，为防止其对地表的冲刷，可在汇水线上布置一些山石，借以减缓水流冲力降低流速，起......
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My driving was suspended for ___ a red light.A、ignoring...
单项选择题My driving was suspended for ___ a red light.
自然成熟(名词解释)
未知题型自然成熟(名词解释)
Tom insists () his rights.A.upB.toC.onD.of
单项选择题Tom insists () his rights.
