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—How long does it take us to go to your hometown from here?

—It takes us _______ hour or more to go to my hometown by _____ train.

A. an; a B. an; / C. a ; an D. a; /

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How long are you willing to wait for a webpage to open before you start to lose your patience? Half a minute? A few seconds?

Google engineers have discovered that even 400 milliseconds ― as short as the blink (眨眼) of an eye ― is too long for most Internet users.

A millisecond is one thousandth of a second. People hardly notice such a small time difference, but it does cause them to stop searching, reported The New York Times.

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短文改錯

下面短文中有十處錯， 每處錯皆用底線標出， 請將答案填寫在答題卡相應的位置上。( 每小題只填一詞， 不得改變原句意思)

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