单项选择题

Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．To drive the train after it is started automatically.
B．To start the train and to drive it when necessary.
C．To take care of the passengers on the train.
D．To send commanding signals to the command spot.
<上一题 目录 下一题>
热门 试题

单项选择题
A．Music they like can relieve depression but distract attention.B．Music they like can reduce stress and improve concentration.C．Classical music and rock-and-roll increase their heart rate and expand the breathing.D．Wearing headphones can help concentrate when they are performing operations.
A．Music they like can relieve depression but distract attention.
B．Music they like can reduce stress and improve concentration.
C．Classical music and rock-and-roll increase their heart rate and expand the breathing.
D．Wearing headphones can help concentrate when they are performing operations.
单项选择题
A．Preparing for an important test.B．Funding for university education.C．Winning the confidence of voters.D．Graduate school application procedures.
A．Preparing for an important test.
B．Funding for university education.
C．Winning the confidence of voters.
D．Graduate school application procedures.
相关试题