题目内容
样本回归方程随抽样不同而变，但是唯一的。
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变量间存在相关关系，则表示变量间存在着相互因果影响
[音频]We cannot travel every path. Success must be won along one line. We must make our business the one life purpose to which every other must be 1)___________. I hate a thing done by halves. If it be right, do it boldly. If it be wrong, leave it undone. The men of history were not perpetually looking into the mirror to make sure of their own size. 2)_________ in their work they did it.They did it so well that thewondering world sees them to be great, and 3)________ them accordingly. To livewith a high ideal is a successful life. It is not what one does, but what onetries to do, that makes a man strong. “Eternal vigilance,” it has been said,“is the price of 4)________.” With equal truth it may be said, “Unceasing effortis the price of success.”If we do not work with our might, others will; and they will outstrip us in the race, and pluck the prize from our grasp. Success grows less and less 5)___________ on luck and chance. Self-distrust is the cause of most of our failures. The great and 6)_____________ help to success is character. Character is a crystallized habit, the result of training and conviction.Every character is influenced by heredity, environment and education. But these apart, if every man were not to be a great extent the 7)_________ of his own character, he would be a fatalist, and 8)____________ creature of circumstances. Instead of saying that man is a creature of circumstance, it would be nearer the mark to say that man is the architect of circumstance.From the same materials one man builds 9)________, another hovel. Bricks and mortarare mortar and bricks, until the architect can make them something else. The true way to gain much is never to 10)______ to gain too much. Wise men don’t care for what they can’t have.
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