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【判断题】
The writer thinks December is the time of year he feels wealthiest because December gives him a chance to receive Christmas gifts.A.
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B.
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【简答题】已知1≤x≤10且xy 2 =100，求（lgx） 2 +（lgy） 2 的最大值和最小值，并求取得最大值和最小值时相应的x，y的值．
【简答题】Dear Sir, I have learned that volunteers for Beijing 2022 Winter Olympic s is needed. I’m writing to apply to this position. As a native of Beijing, I think it is a privilege and duty for me to of...
【简答题】已知函数 , 是 的导函数． （Ⅰ）求函数 的最大值和相应的 值； （Ⅱ）若 ，求 的值．
【简答题】Dear Sir, I have learned that volunteers for Beijing 2022 Winter Olympic s is needed. I’m writing to apply to this position. As a native of Beijing, I think it is a privilege and duty for me to of...
【简答题】求函数 的最大值 和最小值及相应的 的值.
【简答题】I look forward to returning to Xiamen as soon as I can. But even now I’m writing my course materials, so students can do much of the work online. In fact, this week, many XMU courses 1 online. This is...
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