A stamp is worth a million and a half times its original val

A stamp is worth a million and a half times its original value because__________

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下列有关鼠标操作的叙述中,错误的是(  )。

下列有关鼠标操作的叙述中,错误的是(  )。A.右击:快速按下再放开鼠标右键一次 B.单击:快速按下再放开鼠标左键一次 C.双击:快速按下再放开鼠标左键两次 D

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科目编码可以为(  )。

科目编码可以为(  )。A.数字 B.文字 C.字母 D.符号

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There are many countries in the world where the water supply

There are many countries in the world where the water supply is not sufficient f

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