直线y=-4x+k与坐标轴围成的三角形面积为8,则k=( )
±8
—Would you like me to show you the way?
—_________. [ ]
A. No way
B. Yes, you would.
C. It's right.
D. That's very kind of you.
患者男,25岁,腹部手术术后2天,仍无排气排便,腹部膨隆,听诊未闻及肠鸣音,首先考虑的诊断为()
A.肠套叠
B.肠扭转
C.机械性肠梗阻
D.绞窄性肠梗阻
E.动力性肠梗阻