[单选题]Both men are on the Earth when the dialogue takes place.

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• ●    All people, whether they be rich or poor, trong or weak, privileged or deprived，are interdependent, and _______ the common tak of eeking to achieve mankind full potential
• ●    1_____education i the intruction that occur when the intructor and tudent are eparated by ditance or time,or both
• ●    29．__________ when you are on the bu or bike．
• ●    When a veel ee the other ahead or nearly ahead，by night he could ee the mathead light of the other in a line or nearly in a line or both ide light，（）hall be deemed to exit.
• ●    Mater are（）olely reponible for all damage or accident of whatever kind reulting from the navigating or handling of their veel by day or by night.
• ●    Document output are produced on(75) , device that produce text or image on paper.
• ●    Document output are produced on(71), device that produce text or image on paper.
• ●    The Urgency Signal（）indicate that the tation calling ha a very urgent meage to tranmit concerning the afety of a hip or aircraft，or of ome peron on board or within ight.
• ●    （）mean any peron by whom or in whoe name or on whoe behalf a contract of carriage of good by ea ha been concluded with a carrier，or any peron by whom or in whoe name or on whoe behalf the good are actually delivered to the carrier in relation to the contract of carriage of good by ea.
• ●    系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
• ●    Hand hold or trap on the underide of an inflatable liferaft are provided（）.
• ●    Hand hold or trap on the underide of an inflatable are provided（）.