Workers on the platforms and trains were replaced by ma-找考题网

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A．Workers on the platforms and trains were replaced by machines.
B．A completely automatic line was added to its network.
C．It became the first completely automatic railway in the world.
D．Its trains became manual-controlled.

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[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.

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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.

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