简述儒家之“儒”的本质含义。
Where is thicker plating usually found in the construction of integral tanks on a ship? （） ["On the outside of the tank","At the bottom of the tank","At the top of the tank","At the center of the tank"]
对低碳钢和高强度低合金钢焊接接头破坏一般首先出现在（） ["母材内","焊缝内","热影响区内","正火区内"]
下列焊接方法中，热影响区最窄的是（） ["焊条（手工）电弧焊","埋弧自动焊","气焊","电渣焊"]
When fueling has been completed（）. ["the fuel tank fill pipe should be left open to allow vapors to vent from the tank","the engine should be started immediately to prevent vapor lock in the fuel line","all hatches should be opened and all compartments should be ventilated","open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment"]
简述孔子“君子观”的主要内容。
