生产实践中向锌液中投入定量的铝会明显的改善锌层的附着性
正确
暂无解析
题目:CongratulationLetter祝贺与慰问
Mysisterwasn'tinParislastmonth,soyou_____herthere.
It’snecessary_________usallto________
Mario:Yourbelovedteacherhasarrivedhere,Nina.
Nina:I______she______untiltomorrow.
Thelittleboydidn’tknow_______.