【单选题】执行了下面的程序后,组合框中数据项的值是( )。 PrivateSubForm_Click() Fori=1 To 6 Comb01.Addltem i Nexti Fori=1 To 3 Combol.Removeltem i Nexti End Sub
【单选题】外围电子构型为4d 5 5s 1 的元素在周期表中的位置是
【单选题】执行了下面的程序后,组合框中数据项的值是( ) PrivateSub Form_Click() For i = 1 To 6 Combo1.AddItem i Next i For i = 1 To 3 Combo1.RemoveItem i Next i End Sub
【单选题】砷为第4周期VA族元素,根据它在周期表中的位置推测,砷不可能具有的性质是( )
C.
As 2 O 5 对应水化物酸性比H 3 PO 4 弱
【简答题】No one ______ that to his face. a. dares say b. dares saying c. dare say d. dare to say
【单选题】No one ____ that to his face.
【单选题】We ____ a word unless she asks us ____.
B.
dare not to say; to say
【单选题】一维晶体,在德拜近似下计算晶格振动对比热的贡献,低温极限比热和温度的几次方成正比 ?