单项选择题

During the drill, when people hear the bell, they______.

A．should take any route to go down
B．should not go down by stairs
C．should take the lifts
D．should go down by stairs only
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单项选择题
According to the passage, one misses most about the world when one______.
A．is blind
B．is deaf
C．has no senses of taste and touch
D．has no senses of balance and motion
单项选择题
Drinking too much might affect one's______.
A．visual sense
B．sense of balance
C．kinesthetic sense
D．sense of heating
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