When oil is accidentally discharged into the water,what should you do after reporting the discharge().
A. Contain the oil and remove as much of it as possible from the water
B. Throw chemical agents on the water to disperse the oil
C. Throw sand on the water to sink the oil
D. Obtain your permit from the Corps of Engineer
电磁继电器的工作原理是什么?当输出回路包含感性负载是为什么要加续流二极管?
专家们同意作者论文的主要部分,对某些部分或细节提出不同意见时,作者应该()
A. 尽力向责任编辑陈述己见,争取及时复审
B. 诚恳地接受审稿者意见尽可能做好修改
C. 谨慎行事,冷静对待并反复思考
D. 对此理解并正确对待
船机运转中常出现油、水、气等的跑、冒、滴、漏现象,这种故障征兆是属于()。
A. 功能异常
B. 消耗反常
C. 外观反常
D. 压力异常