单项选择题

A．5,400,000 years.
B．65,000,000 years.
C．8,400,000 years.
D．75,000,000 years.
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单项选择题
A．In the top right-hand comer.B．In the box printed on the cheque.C．On the right-hand bottom line.D．On the back of the cheque.
A．In the top right-hand comer.
B．In the box printed on the cheque.
C．On the right-hand bottom line.
D．On the back of the cheque.
单项选择题
A．Watch traffic.B．Obey commands.C．Cross streets safely.D．Guard the door.
A．Watch traffic.
B．Obey commands.
C．Cross streets safely.
D．Guard the door.
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