What is the disadvantage for air transportation? （）A、Quick but not safeB、Less frequencyC、It can’t lift heavy goodsD、The highest cost in all transport modes
What is the disadvantage for air transportation? （）
- A、Quick but not safe
- B、Less frequency
- C、It can’t lift heavy goods
- D、The highest cost in all transport modes
相关考题：
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（）is the disadvantage for air transportation?A、Quick but not safeB、Less frequencyC、It can’t lift heavy goodsD、the highest cost in all transport modes
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单选题（）is the disadvantage for air transportation?AQuick but not safeBLess frequencyCIt can’t lift heavy goodsDthe highest cost in all transport modes
单选题What is the function of an air receiver in the compressed air system on a ship? （）ACondenses moistureBProvides overpressure protectionCPurifies the airDActs as an accumulator
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单选题What is the disadvantage for air transportation? （）AQuick but not safeBLess frequencyCIt can’t lift heavy goodsDThe highest cost in all transport modes