3348. 使用应急泵时应记录操作时间。( )

952.Stop the test after 2 seconds ( )

951.Make sure that the landing-light cutoff switch power connection is safe( )

950.如果溶液进入眼睛,立即就医。( )

949.Be careful when you move jet pipes or exhaust cones that have insulating blankets ( )

948.在发动机启动前远离排气区域 ( )

947.Only use technical verbs as verbs, not as nouns( )

946.Before you put new oil in the system, it is mandatory to replace the filter( )

945.如果污染物造成孔堵塞超过 50%,就要清洁显示组件后面的孔。( )

944.The topic sentence is the first and most important sentence in a paragraph( )

943.This procedure includes the instructions to remove the constant speed drive[CSD]( )