单击命令按钮后，下列程序代码的执行结果是______ 。 Public Sub fun (a As Integer, b As Integer, c As Integer) Do a=b+ c n=n+1 Loop While n ＞ 3 End Sub Private Sub command1_ click() Dim m As Integer, n As Integer, i As Integer For i = 0 To 2: m = n + 1: Next i For i = 1 To 2: Call fun (m, n, i): Next i For i = 0 To 3 Print m; Next i End Sub

任何会进到宝宝嘴里的器皿和用来收集或储存母乳的器皿，（）都需要彻底的清洗，避免污染，保护宝宝避免感染。

A.每次

B.每2次使用中间

C.每半天

D.每天