单项选择题

The meeting was so prolonged and exhausting that ______ the speakers stopped for refreshments.

A．at ease
B．at random
C．at intervals
D．at large
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单项选择题
His description gave us a ______ of what things were like in that part of the country.
A．glimpse
B．glance
C．glare
D．gleam
单项选择题
For those who have hearing problems telephone with volume controls pro vide the best
A．result
B．reply
C．response
D．solution
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