单项选择题

A．For high speed transportation.
B．For extremely high altitude flights.
C．For overseas passenger transportation.
D．For urgent mission to places inaccessible to other kinds of craft.
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单项选择题
A．Every glance has its significance.B．A glance conveys more meaning than words.C．A gaze longer than 3 seconds is unacceptable.D．Staring at a person is an expression of interest.
A．Every glance has its significance.
B．A glance conveys more meaning than words.
C．A gaze longer than 3 seconds is unacceptable.
D．Staring at a person is an expression of interest.
单项选择题
A．Storm chasing is only fit for young people.B．Many storm chasers get killed in the storms.C．Sometimes storm chasers get nothing but disappointment.D．Storm chasing is becoming popular around the world.
A．Storm chasing is only fit for young people.
B．Many storm chasers get killed in the storms.
C．Sometimes storm chasers get nothing but disappointment.
D．Storm chasing is becoming popular around the world.
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