Should be done with passengers on board.
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May only be done with passengers on board if doing so is unavoidable.
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Can be done with passengers on board if the passengers are told of the refueling in advance.
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Should be done with passengers on board.
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May only be done with passengers on board if doing so is unavoidable.
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Can be done with passengers on board if the passengers are told of the refueling in advance.
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Answer correctly : 0 | Wrong : 0
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