問題詳情
34. 活塞在氣缸套內上下往返運動，在氣缸套真正產生磨耗起始位在何處？
(A) 第一道活塞環上死點位置
(B) 第二道活塞環上死點位置
(C) 第一道活塞環下死點位置
(D) 第二道活塞環下死點位置
(A) 第一道活塞環上死點位置
(B) 第二道活塞環上死點位置
(C) 第一道活塞環下死點位置
(D) 第二道活塞環下死點位置
參考答案
答案：A
難度：簡單0.883721
統計：A(38),B(3),C(1),D(1),E(0)
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