单项选择题

What’s the minimum weight a shipment must reach in order to be transported by air ？（）

A．No restrictions.
B．68kg.
C．122kg.
D．997kg.

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热门试题

单项选择题

Passfaces is a method to get access to a system through （）.

A．remembering a large number of faces
B．selecting photographs of faces one likes
C．recognizing a sequence of face pictures
D．showing one’s face in front of the computer

单项选择题

32（）

A．route
B．track
C．path
D．trace