While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should ()
A. reduce the fuel feeding of main engine of inner propeller
B. reduce the fuel feeding of main engine of outer propeller
C. firstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propeller
D. reduce fuel feeding of two engines at the same time
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按照缅甸规定,访客入境时可免税携带香烟200支、酒一瓶(约一公升)、化妆水一瓶,但价钱需详实申报,以免出关时被没收或课重税。
A. 正确
B. 错误
编辑印制电路板图时,放置铜箔走线的工具为Place菜单下的哪一项命令?()
A. Interactive Routing
B. Part
C. Wire
D. Component
3D NOW!是哪方面的技术?由哪个公司首次提出?