On traffic lanes where demand is strong and plane capacity is limited， the air rates will be （）and vice versa for traffic lanes where supply exceeds demand.
- A、low
- B、high
- C、normal
- D、average
正确答案:B
答案解析:有
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国际货运代理
国际货运代理
On traffic lanes where demand is strong and plane capacity is limited， the air rates will be （）and vice versa for traffic lanes where supply exceeds demand.
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