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判斷題

在汽車待速行駛時，其阻力由滾動阻力、空氣阻力和上坡阻力組成。

答案：正確

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發(fā)動機編號中有“Z”字母時，則為增壓發(fā)動機。

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內(nèi)燃機是將燃料的化學能轉(zhuǎn)變?yōu)闄C械能。

答案：錯誤

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