图示结构各杆截面相同，各杆温度均匀升高t，则( )。 -焚题库

来源：焚题库 2025-09-30

中

A.M<img src="https://timg.fentiku.com/97/2016/12/22/PXtPuzIMxO.png" title='PXtPuzIMxO.png' alt='PXtPuzIMxO.png'/>=M<img src="https://timg.fentiku.com/97/2016/12/22/aCvACaPRiI.png" title='aCvACaPRiI.png' alt='aCvACaPRiI.png'/>=M<img src="https://timg.fentiku.com/97/2016/12/22/j5Otb05tt6.png" title='j5Otb05tt6.png' alt='j5Otb05tt6.png'/>
B.M<img src="https://timg.fentiku.com/97/2016/12/22/OY7wk4pzhb.png" title='OY7wk4pzhb.png' alt='OY7wk4pzhb.png'/>>M<img src="https://timg.fentiku.com/97/2016/12/22/FHHhEfNvtA.png" title='FHHhEfNvtA.png' alt='FHHhEfNvtA.png'/>>M<img src="https://timg.fentiku.com/97/2016/12/22/DqFR0mEQkL.png" title='DqFR0mEQkL.png' alt='DqFR0mEQkL.png'/>
C.M<img src="https://timg.fentiku.com/97/2016/12/22/SUgxHb93zO.png" title='SUgxHb93zO.png' alt='SUgxHb93zO.png'/><M<img src="https://timg.fentiku.com/97/2016/12/22/Ze0NoFXLC1.png" title='Ze0NoFXLC1.png' alt='Ze0NoFXLC1.png'/>=M<img src="https://timg.fentiku.com/97/2016/12/22/UYZi4njk1f.png" title='UYZi4njk1f.png' alt='UYZi4njk1f.png'/>
D.M<img src="https://timg.fentiku.com/97/2016/12/22/vHSHa95TTr.png" title='vHSHa95TTr.png' alt='vHSHa95TTr.png'/>>M<img src="https://timg.fentiku.com/97/2016/12/22/gvPyzOb8n3.png" title='gvPyzOb8n3.png' alt='gvPyzOb8n3.png'/>=M<img src="https://timg.fentiku.com/97/2016/12/22/sk0hcYMiyu.png" title='sk0hcYMiyu.png' alt='sk0hcYMiyu.png'/>

正确答案：B

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