[名词解释] 铜片腐蚀

蚊可传播的疾病是（） ["疟疾、乙脑","黑热病","阿米巴痢疾","疥疮","鼠疫"] 为延长加氢催化剂的使用寿命，再生时的惰性气体是（） ["H2","N2","H2O","He"] 强度 牙冠与牙根交界处的弧形曲线为（） ["牙冠","牙根","牙颈","牙周膜","牙槽骨"] 青春期月经不调原因常是（）。 ["无排卵","正常排卵","经间期出血","月经量多","以上都不是"] 铜片腐蚀