单项选择题

Hearing problems may be alleviated by changes in diet and exercise habits．（）

A．removed
B．cured
C．worsened
D．relieved

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单项选择题
Allthe cars are tested for defects before leaving the factory（）

A．functions
B．faults
C．motions
D．parts
单项选择题
These programmes are of immense value to old people（）

A．natural
B．fatal
C．tiny
D．enormous
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