采用催化裂化技术实现重油轻质化的同时,其联产的催化裂化柴油(LCO)质量相当差,为劣质LCO改质而开发的工艺国内称为()工艺。
参考答案:MHUG
肺癌压迫喉返神经可发生()
A.声音嘶哑
B.上腔静脉阻塞综合征
C.吞咽困难
D.霍纳(Horner)综合征
E.血性胸腔积液
下列程序运行后,单击命令按钮,窗体显示的结果为( )。 Private Function pl(x As Integer,y As Integer,z As Integer) pl=2*x+y+3*z End Function Private Function p2(X As Integer,y As Integer,z As Integer) p2=p1(z,y,x)+x End Function Private Sub Commandl_Click() Dim a As Integer Dim b As Integer Dim c As Integer a=2:b=3:c=4 Print p2(c,b,a) End Sub
A.23
B.19
C.21
D.22