【新高考數(shù)學(xué)】小題壓軸題專練7 基本不等式

小題壓軸題專練7基本不等式一、單選題x

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1C32

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112y(4[(3x)]22

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B

C

D

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mn(m

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176

B

145

C

D

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1242b

A

720

B

720

C

7620

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