单项选择题
Duty officer informs us that the vessel is out of harbor and in “Full Ahead”We are going to run （）.
A.diesel oil instead of fuel oil B.fuel oil instead of diesel oil C.diesel oil instead fuel oil D.fuel oil instead diesel oil
单项选择题 The bearing cap and shell are replaced and tightened up until （）.
单项选择题 In （）the control action is independent on the output.
单项选择题 The （）is fitted on an oily water separator.
