Wednesday, September 21, 2022
问题:海伦1211的灭火作用主要是阻碍燃烧的链锁反应。...
Sunday, September 18, 2022
Thursday, September 22, 2022
问题:在下列操作中,信号员采用综合手势进行指挥的有()。...
Tuesday, September 20, 2022
问题:单喷嘴式洗舱机大都采用内装水轮机的自动驱动方式。...
Sunday, September 18, 2022
问题:引起风暴潮的天气系统主要是热带风暴和台风,其次是温带气旋和()。...
Tuesday, September 20, 2022
Thursday, September 22, 2022
问题:碳化氢燃烧条件需要有碳化氢与适当的氧气混合及火源,碳化氢气体在含氧分达不到()时,不能燃烧()。...
Monday, September 19, 2022
问题:每半月对甲板间歇设备进行()一次检查设备各种情况是正常。...
Thursday, September 22, 2022
问题:用吊笼吊运人员时,应按照A.P1的有关规定,吊重量只允为吊机的静态全提升负荷的()。...
Wednesday, September 21, 2022
Saturday, September 17, 2022
问题:单选题原油外输泵型式为()。A 卧式双吸单级离心泵B 卧式单吸单级离心泵C 立式双吸单级离心泵...
Saturday, October 21, 2023
Thursday, September 22, 2022
Saturday, June 17, 2023
Thursday, September 22, 2022
问题:涂刷天花板或大面积涂面时,采用()的握刷较省力且工作效率高。...
Thursday, September 22, 2022
问题:单选题平台柴油用途()。A 发电机B 压井泵C 作燃料,压井...
Monday, November 28, 2022
Thursday, September 22, 2022
问题:在西北太平洋沿岸遭受台风风暴潮严重的国家有()。...
Thursday, September 22, 2022
Saturday, September 17, 2022