题目内容

交流电焊机空载电压不得超过()伏,焊机把线电缆应采用专用橡套多股细铜线电缆。

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低压隔爆开关进线接线嘴紧固程度螺旋线咀用()为合格,压叠式线嘴用()为合格。

在员工中进行公关知识讲授与培训,提高员工的公关技能,是内部公关工作中一项经常性的工作。这些知识和技能主要包括:()。

A. 个人的素质和形象培训
B. 国际形势与国内经济发展情况
C. 公关活动的知识和技能
D. 行业的发展趋势与动态

“Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired, or at least patched up temporarily until the next stop” This sentence means that ().

Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the spot
B. Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the next port of call
C. Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired until the next stop
D. Any leaks in piping, propeller shaft, machinery, tanks, will have to be at least patched u

新氢缓冲罐的设计压力为()。

A. 2.3MPa
B. 2.53MPa
C. 2.83MPa
D. 3.0MPa

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