Porsche SE preferred shares dropped 4.9 percent to 40.60 euros after Volkswagen AG Chief Executive Officer Martin Winterkorn said it may put its merger with the maker of the 911 sports car on hold.

德国保时捷公司优先股股价下跌4.9%，至40.60欧元，此前大众汽车公司首席执行官马丁·温特科恩（Martin Winterkorn）表示，可能会并购这家911跑车的制造商。

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"Our study shows that contrast against the background, rather than color per se, may be more important for object detection by sharks," study co-author Hart said in a statement.

“我们的研究显示，与背景色之间的差别，而不是颜色本身，才是鲨鱼探测目标的更重要依据。”研究者之一哈特在一份声明中说。

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After the match, Lee Se-dol said: "Yesterday I was surprised but today it's more than that, I am quite speechless."

比赛过后，李世石说：“昨天我很吃惊，但今天更甚，我挺无语的。”

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"The window for dialogue is always open, " South Korean Foreign Minister Yun Byung-se said Friday following his meeting with Mr. Kerry.

WSJ: U.S., South Korea Offer North Talks, and a Warning

Meanwhile, Kerry boss Paidi O Se has said that he will stay on in the position for another year.

BBC: Ulster quartet in Rules squad

South Korea's new foreign minister, Yun Byung-se, said in his inauguration speech Monday that despite the "very grave" situation on the peninsula he hoped relations would improve with the North.

WSJ: Pressure Rises on Korean Peninsula