
【名词&注释】
急性阑尾炎(acute appendicitis)、输尿管结石(ureteral calculi)、不利因素(unfavorable factors)、局限性(limitation)、太阳光(sunlight)、引航员(pilot)、胸膜炎(pleurisy)、转移性(metastatic)、救生筏(life raft)
[单选题]当泵的工作管路和吸、排液面高度既定时,泵工作正常时工作扬程与( )无关。
A. 泵的流量
B. 排出阀开度
C. 排出液面压力
D. 几何吸高
查看答案&解析
举一反三:
[单选题]引航员
A. pilot
B. captain
C. chief officer
D. third officer
[单选题]救生筏(life raft)顶蓬设置,可能产生的不利因素为()
A. 遮蔽太阳光直射
B. 收集雨水
C. 空气混浊
[单选题]救生筏(life raft)应能在多少米高度抛掷下水而不受影响使用?
A. 15米
B. 18米
C. 20米
D. 10米
[单选题]转移性(metastatic)右下腹痛及右下腹有固定局限性压痛,是诊断______的可靠据。
A. 胃十二指肠溃疡穿孔
B. 急性阑尾炎
C. 右下肺炎或右侧胸膜炎(pleurisy)
D. 右输尿管结石
[单选题]Which of the following statements is correct regarding an oil with a high viscosity index?
A. A large change of viscosity occurs with a minor change in temperature
B. No change in viscosity occurs with any change in temperature
C. Very little change in viscosity occurs with a significant change in temperature
D. The viscosity of the oil increases with an increase in temperature
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