题目内容

大型低速二冲程柴油机的活塞由以下部件组成（）。Ⅰ.活塞头Ⅱ.活塞裙Ⅲ.活塞销Ⅳ.活塞杆Ⅴ.柔性螺栓Ⅵ.十字头

A. Ⅰ＋Ⅱ＋Ⅳ＋Ⅴ
B. Ⅰ＋Ⅲ＋Ⅳ＋Ⅵ
C. Ⅱ＋Ⅲ＋Ⅳ＋Ⅵ
D. Ⅱ＋Ⅲ＋Ⅴ＋Ⅵ

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