单项选择题

A．The workers on the underground platforms were replaced by machines.
B．It became the first completely automatic railway in the world.
C．A completely automatic line was added to its network.
D．Its trains became computer-controlled.
<上一题 目录 下一题>
热门 试题

单项选择题
A．A bomb threat at a hospital.B．A flood at a school.C．A fire at an apartment building.D．A traffic accident near a building.
A．A bomb threat at a hospital.
B．A flood at a school.
C．A fire at an apartment building.
D．A traffic accident near a building.
单项选择题
A．He is having a hard time letting his apartment.B．He prefers his old tenant to the new one.C．He is not accustomed to living with the new tenant yet.D．He doesn’t want to let his apartment to her.
A．He is having a hard time letting his apartment.
B．He prefers his old tenant to the new one.
C．He is not accustomed to living with the new tenant yet.
D．He doesn’t want to let his apartment to her.
相关试题