对委派会计实行报告制度,分为月度报告、工作总结、()。
A. 半年工作报告
B. 年度工作报告
C. 重大事项报告
D. 紧急情况工作报告
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A vessel servicing a pipeline during the day shall display().
A. three black shapes in a vertical line; the highest and lowest are balls,and the middle one is a diamond
B. three shapes in a vertical line; the highest and lowest are red balls,and the middle one is a white diamond
C. three black balls in a vertical line
D. two black balls in a vertical line
下列属于特高压交流系统输电能力电压稳定计算方法的是()。
A. 静态电压稳定计算
B. 大扰动暂态电压稳定和动态电压稳定计算
C. 特征根判别法
D. 中长期电压稳定计算