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在PowerPoint2003中,要终止幻灯片放映,只需按______键即可。

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高速缓存(cache)可以看做是主存的延伸,与主存统一编址,接受CP~J的访问,但其速度要比主存高得多。()
参考答案:错误

Why do cities often promote trade shows? Cities often promote trade shows as a means of ______ .

What kinds of trade shows are there in the real world? There are ______ and Trade Only.

某水果市场有3个摊位销售苹果,销售情况如下表:
要求:计算该市场苹果的平均价格。

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