请打开“计算器”应用程序,利用科学型模式,计算半径为4的圆的周长。

请打开“计算器”应用程序,利用科学型模式,计算半径为4的圆的周长。

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设置【Internet属性】,设置Internet程序默认电子邮件组为Hotmail。

设置【Internet属性】,设置Internet程序默认电子邮件组为Hotmail。

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按如下所述顺序对【Internet选项】

按如下所述顺序对【Internet选项】

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There was a profound silence after his remark.

There was a profound silence after his remark.A.proud B.short C.sudden D.deep

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Did anyone call me when I was out?

Did anyone call me when I was out?A.invite B.name C.answer D.phone

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