题目内容

不属于有色金属的是()。

A. 轴承合金
B. 灰口铸铁
C. 铝
D. 镍合金

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请说出至少4个核电厂保护系统的安全准则。

APP()年开始将所有改善活动整合为MBOS管理平台。

桑塔纳轿车的转向驱动桥由两个烛式独立悬挂组成。

A. 正确
B. 错误

The duty officer and engineer should obey regulation for the speed of the M-E that established by ()

A. captain
B. chief engineer
C. chief engineer and captain consult together
D. chief engineer and superintend consult together

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