【单选题】Paragraph 2 Every day after work Paul took his muddy boots off on the steps of the front porch. Alice would have a fit if the boots made it so far as the welcome mat. He then took off his dusty overal...
【简答题】某人编写如下函数来判断a是否为素数,若是,则函数返回True;否则返回False。 Function prime(a As Integer) As Boolean Dim k As Integer, isprime As Boolean If a < 2 Then isprime=False Else isprime=True k=2 Do While k < a / 2 And is...