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?8445.Pressure is a term used to indicate the force per unit area.Pressure is usually expressed in

发布于 2021-02-18 22:10:07

【单选题】
A ?pounds per square inch.
B ?pounds per inch.
C ?pounds per cubic inch.

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hesheng 2023-02-18

生活充满了选择，而生活的态度就是一切。

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