团结带领人民进行伟大斗争，推进伟大事业、实现伟大梦想，必须毫不动摇坚持和完善()
A四项基本原则
B民主集中制
C党的领导
D群众路线
查看答案
PW127J型发动机最大起飞功率为：
A. 2475轴马力
B. 2575轴马力
C. 2750轴马力
D. 2850轴马力
党的十九大报告指出，()是引领发展的第一动力，是建设现代化经济体系的战略支撑。
A. 创新
B. 改革
C. 开放
D. 协调
When you are transferring fuel oil to the setting tanks, precautions to be observed should
A. plugging gooseneck tank vents to prevent accident overflow
B. maintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow line
C. sounding the tanks frequently and reducing the transfer rate as the level approaches maximum fill
D. maintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the ship
微信支付 
支付宝支付