单项选择题

A．Go through a health check.
B．Carry little luggage.
C．Arrive early for boarding.
D．Undergo security checks.
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单项选择题
A．Two or three days.B．24 to 48 hours.C．Less than 12 hours.D．One day and a half.
A．Two or three days.
B．24 to 48 hours.
C．Less than 12 hours.
D．One day and a half.
单项选择题
A．On the table.B．Behind his back.C．Under his bottom.D．On his lap.
A．On the table.
B．Behind his back.
C．Under his bottom.
D．On his lap.
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