正确答案: B
            4 
            题目:MARPOL公约将有毒液体物质污染分为()类。
             解析:B
 
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            举一反三的答案和解析:
                                                    
                                 
                
                 [单选题]互见中,一机动船与下列________航向交叉相互驶近,致有构成碰撞危险,适用交叉相遇局面条款。
                                                
                  
                                                                                                                                                                 限于吃水的船舶 
                                                                                        
                
                
                            
                
                 [单选题]穿着救生衣的人能使身体后倾仰浮,把脸面浮出水面,嘴离水面至少:
                                                
                  
                                                                                                                                                                 12厘米 
                                                                                        
                
                
                            
                
                 [单选题]Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____.
                                                
                  
                                                                                                                     audible/visual alarm 
                                                                                                                                    
                
                
                            
                
                 [单选题]On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).
                                                
                  
                                                                                                                                                                                                             drilled passages in the crankshaft 
                                            
                
                解析:解析:medium:中等,介质;pin:销,刺穿,钉住;journal:轴颈;spindle:芯轴,转轴;lubricator:注油器;splash:飞溅 
                            
                
                 [单选题]During the dock repair, when installing the tail shaft and propeller, ____ should be on the spot for supervising
                                                
                  
                                                                         chief engineer 
                                                                                                                                                                                
                
                
                            
                
                 [单选题]用节流调节法改变泵的流量一般应改变( )阀的开度。
                                                
                  
                                                                                                                     排出 
                                                                                                                                    
                
                
                            
                
                 [单选题]有毒液体物质残余物排放时,对于自航船船速要求是?()
                                                
                  
                                                                         至少7kn