题目内容
当坝体表面有渗水时，应测定渗水点的、、。
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坝体排水系统检查的主要内容有，排水孔工作状况、排水量、水体颜色及浑浊度。
下游河床的冲淤情况不属于混凝土坝巡视检查的主要内容。
Chinese rules of etiquette regarding costumes and adornments started taking shape in the______ dynasty, regulating from nobles down to commoners
_____ had been used in the front of costumes for several thousand years before the Ming dynasty.
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