以下不属于姑息性手术的是（）。
A.肿瘤所在器官的全部或部分切除
B.肉瘤的广泛切除
C.内吻合转流术
D.造瘘术
E.血管结扎术
参考答案：B
联系了我国三大直辖市的铁路是：[ ]
A、京广线
B、京哈线
C、京沪线
D、宝成—成昆线
There is a great danger if the driver has been drinking alcohol or taking drugs, or _____ by speeding or breaking down traffic laws.
A．showing off
B．showing around
C．showing up
D．showing in
