【名词&注释】
螺杆泵(screw pump)、液压泵(hydraulic pump)、神经细胞(neuron)、主导作用(leading role)、执行机构(actuator)、集装箱船(container ship)、艾滋病毒(humanimmunodeficiency virus)、散货船(bulk carrier)、换向阀(reversing valve)
[单选题]机舱的前后端均设( )。
A. 普通舱壁
B. 纵舱壁
C. 水密横舱壁
D. 油密横舱壁
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举一反三：
[单选题]艾滋病毒(humanimmunodeficiency virus)专门攻击人体免疫防卫中起主导作用的______。
A. 红细胞
B. 白细胞
C. 血小板
D. 神经细胞
[单选题]在艇筏上求生者若仅有食物而无淡水喝时：
A. 仍可正常生存
B. 仅可生存数天
C. 可生存几十天
[单选题]Which statement is True?
A. The Port State Control Officer has no right to check a SSP
B. The Master has the right to refuse the request from a Port State Control Officer to check the confidential part of the SSP on board
C. The Confidential part of a SSP can never be subject to non-flag State
D. Even the flag State has no right to check the SSP thoroughly
[单选题]If the superheat value of a thermostatic expansion valve is set too low, the _.
A. the suction line will be abnormally cold and liquid may slug back to the compressor
B. the suction line will be hot due to a reduced amount of refrigerant returning to the compressor
C. the temperature of the refrigerant within the condenser will remain the same
D. the temperature of the refrigerant passing through the sub-cooler will decrease
[单选题]阀控型液压装置的M或H型换向阀(reversing valve)在中位时，泵的排出油压和吸入油压之差反映了( )的大小。
A. 液压泵机械摩擦损失
B. 管路流动损失
C. 执行机构机械摩擦损失
D. 执行机构工作负荷
[单选题]SOLAS公约第Ⅹ章中，着重对______的安全进行了适用的规定。
A. 集装箱船
B. 高速船
C. 散货船(bulk carrier)
D. 液货船
[单选题]一般螺杆泵直径越大，其他条件不变，则容积效率( )。
A. 越高
B. 越低
C. 不受影响
D. 都有可能
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