在通风不良处安装管路时,除要有安全措施外,还应该配有(),当瓦斯符合有关规定后方可工作。
A.班长
B.队长
C.瓦检员
D.工程师
参考答案:C
—Can I help you?
—Well, I'm afraid the box is _______ heavy for you, but thank you all the same. [ ]
A. so
B. much
C. very
D. too
单击命令按钮时,下列程序的执行结果是 Private Sub Command1_Click() BT 4 End Sub Private Sub BT(x As Integer) x=x*2+1 If x<6 Then Call BT(x) End If x=x*2 Print x; End Sub A) 15 B) 16 C) 17 D) 18