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The supply of game for London is going steadily up (it ran).Head-keeper Hudson,we believe,has been now told to receive all orders for -paper and for fly-paper and for preservation of your hen-pheasant's life. （答案请输入英文，注意大小写和标点）
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把以b为底的c的对数记作log(b为底) c.
已知[log(a为底) x] + [3log(x为底) a] - [log(x为底) y] = 3（a > 1）.
设x = a^t，若当0 < t ≤ 2时，ymin = 8，求y取到最小值时a + x的值。
已知[log(a为底) x] + [3log(x为底) a] - [log(x为底) y] = 3（a > 1）.
设x = a^t，若当0 < t ≤ 2时，ymin = 8，求y取到最小值时a + x的值。
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