题目内容
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纠错
k > 0
l > 1
Quantity A
$${1}\over{\frac{1}{k}+\frac{1}{l}}$$
Quantity B
$${1}\over{(k)(\frac{1}{k})+\frac{1}{l}}$$
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AQuantity A is greater.
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BQuantity B is greater.
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CThe two quantities are equal.
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DThe relationship cannot be determined from the information given.
D显示答案