单项选择题

A．Selecting the necessary equipment.
B．Finding a climbing partner.
C．Increasing upper-body strength.
D．Discussing popular climbing sites.
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单项选择题
A．Her car was damaged.B．She almost collided with a school bus.C．The speed was too fast.D．She couldn’t stop the bus.
A．Her car was damaged.
B．She almost collided with a school bus.
C．The speed was too fast.
D．She couldn’t stop the bus.
问答题
Directions: Write a paragraph of about 120 words explaining The Growth Rates in Service Mileage among Railway, Road and Aviation. Use the information contained in the graph.
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