以下是安全保卫工作第一责任人的是()
A. 基层信用社主任或副主任
B. 单位法定代表人或主要负责人
C. 分管保卫工作的领导
D. 保卫部经理或副经理
Under which of the listed conditions can the engine room retake the throttle control from the bridge().
Any time it is deemed necessary
B. Only with the masters permission
C. After a 10 minute delay to the input command
D. Only after the throttle has been placed in sto
中性点不接地系统发生单相金属接地时,接地电压变为零,中性点对地电压为()。
A. 零;
B. 相电压;
C. 线电压;
D. 不变。