单项选择题

A．At the bank.
B．In the elevator.
C．At the hospital.
D．In the classroom.
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单项选择题
People these days tend to lack physical energy.
A．Y
B．N
C．NG
单项选择题
Why the paper published by Dr. Hondon makes the commuters worried
A．Because he sets up a model of international radiation safety standards.
B．Because he put forward that the radiation produced by all the mobile phones in the enclosed spaces will bounce around and be harmful.
C．Because the commuters worried that the metal walls of the railway carriage will threaten their health.
D．Because the commuters are afraid that the use of mobile phone will be banned in the railway carriage.
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