问题
判断题
采煤机检修后主油泵应做满载试验:在公称转速和最大排量下,逐渐加载到最高输出压力或额定压力的125%,运转1分钟以上,不得有异常现象。()
答案
参考答案:错
采煤机检修后主油泵应做满载试验:在公称转速和最大排量下,逐渐加载到最高输出压力或额定压力的125%,运转1分钟以上,不得有异常现象。()
参考答案:错
小题1:Where is John Brown from? A. ![]() ![]() ![]() 小题2:Peter is a . A. student B. teacher C. girl 小题3:Alice is a girl. Her telephone number is . A. 5673-6981 B. 7342-6979 C. 8876-5342 小题4:How old is Yingzi? A.12. B.13. C. 14. 小题5:下面哪一项叙述是不正确的? A. John Brown is an English teacher. B. Zhang Hao is from China. C. Alice is a teacher. |