题目内容

The fuel oil supply system to an automatic auxiliary boiler, will automatically shutdown if the boiler ______.

A. steam demand is high
B. salinity is high
C. safety valve simmers(爆发)
D. burner flame is extinguished

查看答案

搜索结果不匹配？点我反馈

更多问题

中国对于科学的误解导致中国人普遍认为科学家应该是能够提供强大生产力的。()

清朝末年中国人对于西方的认知决定中国对西方科学的认知方向主要着眼于技术。()

When started, a complete oily water separating unit is first filled ______. The oily water

A. with dirty water
B. with clean water
C. by oily water
D. by mixed water

中国传统文化中长期有科无技,因此容易科、技不分。()