(|k|-1)x2+(k-1)x+3=0是关于x的一元一次方程,求k的值.
根据题意,得|k|-1=0k-1≠0,
解得,k=-1.
with the size of the whole earth , the biggest ocean does not seem big at all .
A.Compare
B.When comparing
C.Comparing
D.When compared
门静脉高压症形成后首先出现的病理改变是()
A.腹水
B.脾大
C.肝大
D.交通支扩张
E.呕血