The system provides online questions input, questions check, random questions drawing, online answer and so forth.

该系统可以实现在线试题录入、试题审核、随机抽题、在线答题等功能。

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And the very next week, they provided their own answer: going up online.

很快在下一周，他们提供了自己的答案：,他们归结于网络。

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Perelman had posted the answer online, but he didn't fully show how he solved it.

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Perelman posted the answer online, but didn't show how he solved it.

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Administration officials will spend Wednesday taking questions on the State of the Union in a day-long Office Hours marathon, an online question and answer session through Twitter.

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