单项选择题

One machine can do as much work as（）

A．40% of the people
B．4% of the people in the world
C．40 people
D．75 000 people

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单项选择题
Which of the following is NOT true
A．Machines are taking work instead of' people.
B．Now more people are out of work.
C．Machines need more money and longer holidays.
D．Most people want to have jobs.
单项选择题
If tile economics of the world grow by 4% each year,（）

A．people will have no jobs
B．people can still have jobs as before
C．4% of the people will have jobs
D．97% of the people will have jobs
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