单项选择题

A．Experimental medicines.
B．Special treatment centers.
C．Flexible working schedule.
D．Innovative physical exercises.
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单项选择题
A．Doctor--patient.B．Daughter-- mother.C．Passenger--bus driver.D．Customer--merchant.
A．Doctor--patient.
B．Daughter-- mother.
C．Passenger--bus driver.
D．Customer--merchant.
单项选择题
A．Find his glasses.B．Sit up straight.C．Finish his project.D．Get enough rest.
A．Find his glasses.
B．Sit up straight.
C．Finish his project.
D．Get enough rest.
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