题目内容
In the past, the main reason for the reader's poor condition seems to be that______.
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An adaptor can be used on cordless phones or answering machines to stop the consuming of standby power.
A．Write their lab reports.B．Finish their chemistry experiments.C．Find out Professor Sm
When we don't use a lamp, we'd better plug it off to save energy.
By using a power strip at home, people can effectively deal with the problem of standby power.
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