What will passengers be asked to do when they travel to the moon?

A．Carry little luggage．

B．Go through a health check．

C．Arrive 10 minutes earlier for boarding．

D．Undergo security check．

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1 Questions 14-17 are based on the following dialogue．
What is the main purpose of the mall’s trip?

A．To improve his skating techniques．

B．To climb mountains．

C．To take a vacation．

D．To learn to ski．

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2 Why does the woman know so much about Albuquerque?

A．Because her sister lives there．

B．Because she attends college there．

C．Because she lives thirty miles from there．

D．Because she had the vacation there last year．

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3 What may cause most problems in Albuquerque，in the woman’s opinion?

A．The cold weather．

B．The low humidity．

C．The high altitude．

D．The changing climate．

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