单选题：Heating-problems may be alleviated by changes in diet and ex

题目内容：

Heating-problems may be alleviated by changes in diet and exercise habits. A．removed
B．cured
C．worsened
D．relieved

参考答案：

答案解析：

These programmes are of immense value to old people.

These programmes are of immense value to old people.A．natural B．fatal C．tiny D．e

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