【单选题】If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should___________.
A.
remove the discharge ring
C.
the centrifuge to its proper speed
D.
install an additional discharge ring
【简答题】B2-Unit 1 应用型视听说教程 2.rar
【单选题】被毛泽东称为“农民运动大王”的中共早期农民运动领袖是
【判断题】请示的核心内容是写清请求事项,理由可简略。
【单选题】Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from _____.
A.
within the space concerned
B.
outside the space concerned