单项选择题

A．The working hurt are more concentrated in hazardous industries or occupations.
B．The working injuries are often connected with the gender.
C．Older workers are more likely to get hurt at work.
D．Over half of the injuries found at work have something to do with too long working hours.
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单项选择题
A．They are built to produce more fruits and wheat.B．They are naturally air-conditioning and water-saving houses.C．Most of green houses are used only in winter for heating.D．People try to save energy as much as possible.
A．They are built to produce more fruits and wheat.
B．They are naturally air-conditioning and water-saving houses.
C．Most of green houses are used only in winter for heating.
D．People try to save energy as much as possible.
单项选择题
A．To limit the water taken by children.B．To wake up children for bathroom.C．To make children take sleep-induction pills.D．To make children stay up late into the night.
A．To limit the water taken by children.
B．To wake up children for bathroom.
C．To make children take sleep-induction pills.
D．To make children stay up late into the night.
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