单项选择题

A．language teacher
B．A university lecturer
C．A doctor
D．A nurse
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单项选择题
A．She is spending the weekends.B．She sells bikes for her dad.C．She looks for a bike.D．She gets some exercise with a bike.
A．She is spending the weekends.
B．She sells bikes for her dad.
C．She looks for a bike.
D．She gets some exercise with a bike.
填空题
The Occupational Safety and Health Administration (OSHA) was formed in 1971, and it was placed under the control of ______.
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