发现乘客钻闸、跳闸、（）、（）等违章行为必须及时制止，要求乘客出示车票。
参考答案：并闸；带人进闸
门静脉的正常压力为（）.
A.0.49～1.27kPa
B.2.35～3.43kPa
C.2.94～3.92kPa
D.1.27～2.35kPa
E.1.27～3.43kPa
—I think you owe me some money?
—______? My money has never been tight.
A．How come
B．Who says
C．What for
D．Why so
