The two-stroke cycle begins with the piston coming up from the BDC, with the scavenging ports in the sides of the cylinders being （）. -题库考试答案搜索网

The two-stroke cycle begins with the piston coming up from the BDC, with the scavenging ports in the sides of the cylinders being （）.

单选题

2022-02-21 16:49

A、open
B、uncover
C、covered
D、closed

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正确答案

A

试题解析

标签：船舶电气与船舶安全

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