(34)下列程序的功能是计算sum=1+(1+3)+(1+3+5)+……+(1+3+5+……+39) Private Sub Command34_Click() t=0 m=1 sum=0 Do t=t+m sum=sum+t m= Loop While m<=39 MsgBox 'Sum='&sum End Sub 为保证程序正确完成上述功能,空白处应填入的语句是 A)m+1 B)m+2 C)t+1 D)t+2
【简答题】Who doesn’t love sitting beside a cosy fire on a cold winter’s night ? Who doesn’t love to watch flames (火苗) curling up a chimney? Fire is one of man’s greatest friends, but also one of his greatest e...
【简答题】The main reasons in respond to weld cracks are 1________ and 2_______, when The suce of welding work pieces is not cleared, and the flux is damp, the 3_______ in the weld metal may contribute to cr...