【多选题】下列选项中关于脱氧剂的描述正确的是( )。
C.
硅与铝、锰共用时能提高它们的脱氧能力,且脱氧产物为低熔点的复合化合物
【简答题】Language is both a _______ of the faculty of speech and a collection of necessary ______that have been adopted by a social body to permit individuals to exercise that faculty.
【单选题】P36.在窗体中有命令按钮Command1和两个文本框Text0、Text1,命令按钮对应的代码过程如下: Private Sub command1_Click() Dim m,K As Integer Dim flag As Boolean m=Val(Me!Text0) '输入一个整数 Do While 1 K=2 flag=True Do While k<=m /2 And flag If m...
【单选题】“欢乐之火”、“阿罕拜”、“爱达喜楞”、“哲辉冷”等舞蹈是哪个民族的代表?( )