斜井提升，“一响”为（）信号。
A.正常停车
B.上提
C.下松
D.其他信号
参考答案：A
肝炎后肝硬化所致门静脉高压症的主要阻塞部位在（）
A.窦前
B.窦后
C.窦内
D.肝前
E.肝后
The work ________ by William Blake is a lovely volume of poems, presenting a happy world, though not without its evils and sufferings.
A．Songs of Innocence
B．Songs of Experience
C．Poetical Sketches
D．Lyrical Ballads
