单项选择题

Call your doctor for advice if the ______ persist for more than a few days.

A．responses
B．signals
C．symptoms
D．reflections
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单项选择题
The doctors don't __________.that the patient will live much longer.
A．monitor
B．manifest
C．articulate
D．anticipate
单项选择题
The sign set up by the road _______ drivers to a sharp turn.
A．alerts
B．refreshes
C．pleads
D．diverts
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