Quiz 1 will cover materials up to and including the week of January 23.

小考1意志掩护材料向上的到而且包括一月23日的星期。

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The Hubble Space Telescope captured this image of a gamma ray explosion on January 23, 1999.

哈勃望远镜捕捉到的这张照片显示的是1999年1月23日伽马射线爆炸的景象。

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General outside view of the Alpeniglu hotel at Hochbrixen is taken during dusk on January 23, 2011 in brixen im Thale, Austria.

2011年2月23号在奥利地的brixen im Thale，可俯瞰在Hochbrixen的Alpeniglu酒店的外观全景。

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Apple reports its December quarter results after the market close on Wednesday, January 23.

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Apple announces it December quarter results after the market closes on Wednesday, January 23.

FORBES: Can Apple Get to $60 Billion in Revenue? Here's How.

In a January 23, 2006, letter to the defense team of former White House aide I.

CNN: White House: Millions of e-mails may be missing