题目内容
工厂准备以600万元进行投资，根据市场预测，预计每年可获得的收益及其概率的资料如下：若该投资项目的风险系数b为6%，计划年度利率（资金时间价值）为8%，该项投资的收益期望值、标准离差、标准离差率分别是（ ）。
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According to the video, what is gratitude?Gratitude is 1)_________ for people, places, ideas and feelingsGratitude is a 2)______________ for what you have and where you are on your path right now.
As mentioned in the video, we can understand ‘gratitude’ from two perspectives. In the broad sense, Chinese youth of the new era should be grateful to 3)_________ , 4)____________, 5)___________ and 6)__________. In the narrow sense, we should be grateful to 7) __________
From the video, we can learn that there are many ways to cultivate gratitude, for example:• Spend time helping those who are 8)__________• Spend time before you go to sleep giving thanks for all that 9)_________• Go on traveling.• Imagine what your life would be like if 10)__________all that you have
认识微分方程的应用，理解科学技术基于数学的重要性，培养实事求是的品质，对技术要追求精益求精，且知其然同时知其所以然，关于微分方程的应用，下面正确的是：
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