单项选择题


Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．Computers are fast.
B．Computers do not often provide evidences or witnesses.
C．Computers can replace paperwork.
D．Computers are safe from human temptation.
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单项选择题
A．It costs too much.B．It needs repairing.C．It should be modernized.D．It still can be used.
A．It costs too much.
B．It needs repairing.
C．It should be modernized.
D．It still can be used.
单项选择题
A．It is the first completely automatic railway in the world.B．The workers on the underground platforms are replaced by machines.C．Its trains are computer-controlled.D．Its trains run at a high speed.
A．It is the first completely automatic railway in the world.
B．The workers on the underground platforms are replaced by machines.
C．Its trains are computer-controlled.
D．Its trains run at a high speed.
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