单项选择题

By _______ we mean there is no logical connection between meanings and sounds

A．arbitrary
B．duality
C．displacement
D．productivity
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单项选择题
Which is regarded as the backbone of England
A．Pennies.
B．Tyne.
C．Ben Nevis.
D．Helellyn.
单项选择题
The climate of Britain may be generalized as _______.
A．changeable
B．rainy
C．foggy
D．moderate
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