NASA thinks space travellers must ______ to do private space travel
A. observe safety measures carefully
B. have a new desire to use space vehicles for civilian travel
C. nagotiate with Russia or NASA
D. be as rich as Dennis Tito and Mark Shuttleworth
会计机构和会计人员如发现外来原始凭证金额填写错误，应当交由出具单位予以更正并在更正处加盖出具单位印章后，才能受理并据此进行会计核算。()
A. 正确
B. 错误
【38】
A. nevertheless
B. since
C. though
D. however
If a passenger wants to stopover in a place to go sight-seeing on his way to his destination, what must he do？
A. He must pay for his own hotel expenses.
B. He must pay the airline a little money.
C. He must have only one stopover.
D. He must tell the airline at the time of reservation.
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