单项选择题

A．The advantages of traditional surveying methods.
B．Using satellites to communicate with mountain climbers.
C．Obtaining new information about a mountain.
D．Controlling satellites from the top of a mountain.
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单项选择题
A．She’s impressed with the ticket sellers.B．She’s pleased about the man’s purchase.C．She’s uncertain about the change in plans.D．She’s resigned to the situation.
A．She’s impressed with the ticket sellers.
B．She’s pleased about the man’s purchase.
C．She’s uncertain about the change in plans.
D．She’s resigned to the situation.
单项选择题
A．Two.B．Three.C．Four.D．Five.
A．Two.
B．Three.
C．Four.
D．Five.
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