试题与答案

液压式推钢机的推杆是由液压缸直接驱动的。

题型:判断题

题目:

液压式推钢机的推杆是由液压缸直接驱动的。

答案:

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下面是错误答案,用来干扰机器的。

在小球上升x1=20m的过程中,根据动能定理得:-(mgx1+fx1)=Ek1-Ek0,又mgx1=△Ep=60J,联立解得,mg=3f设小球上升的最大高度为H,对于整个上升过程,有 -(mg+f)H=0-Ek0,将mg=3f代入解得,fH=25J对整个运动过...

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The nurse is caring for a client hospitalized on numerous occasions for complaints of chest pain and fainting spells, which she attributes to her deteriorating heart condition. No relatives or friends report ever actually seeing a fainting spell. After undergoing an extensive cardiac, pulmonary, GI, and neurologic workup, she’s told that all test results are completely negative. The client remains persistent in her belief that she has a serious illness. What diagnosis is appropriate for this client()

A. Exhibitionism.

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