单项选择题

All our attempts to ______the child from drowning were in vain.

A．regain
B．recover
C．reserve
D．rescue
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单项选择题
A body weighs ______from the surface of the Earth.
A．less the farther it gets
B．the farther it gets, the less
C．less than it gets farther
D．less than it, the farther it gets
单项选择题
The manager gave one of the salesgirls an accusing look for her______ attitude toward customers.
A．impartial
B．mild
C．hostile
D．opposing
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