[填空题] 由一种液相转变为两种固相的转变是()转变。
[单选题]由一种固相转变为另外两种固相的转变是()转变。A . 共晶B . 包晶C . 共析D . 包析
[单选题]钢中马氏体转变温度Mf的含义是马氏体转变()温度。A .完成B .终了C .开始D .停止
[单选题]The Dixie PIT program was introduced in order to_ _.A.raise money for school affairsB.do some research on nutritionC.develop students' practical skillsD.supply teachers with drinks