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【单选题】
患者女,20岁。因近1个月脾气急躁、怕热、多汗、多食、失眠去医院就诊。查体:甲状腺I度肿大,两手微抖,眼球有轻度突出,心率90次/分。实验室检查:T3 6.5nmol/L,T4 263nmol/L,均高于正常水平。该患者最可能的诊断是A.
生理性甲状腺肿
B.
地方性甲状腺
C.
甲状腺功能进性心脏病
D.
甲状腺功能进症
E.
甲状腺癌
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皮皮学刷刷变学霸
举一反三
【简答题】How to operate oily water separator?
【单选题】Which of the following pumps is most suitable for an oily water separator?
A.
reciprocating pump
B.
vane pump
C.
mono pump
D.
axial-flow pump
【简答题】oily water separator
【单选题】The pressure difference of the gauge on the oily water separator increases greatly, the reason is____.
A.
the filter is clogged
B.
bilge suction value is clogged
C.
suction value and discharge value of the pump do not open fully
D.
screw pump is worn seriously and volumetric efficiency is decreased
【单选题】The time of discharging oil is short, but oily water separator discharges oil frequentlyThe possible reason is ____.
A.
the sensor of low oil level is fully covered by sludge
B.
the coarse strainer before the pump in suction system is clogged
C.
the screw pump is worn seriously and volumetric efficiency is decreased
D.
bilge suction value is clogged
【单选题】Which of the following pumps will most affect oily water separator performance and give the worst result?
A.
reciprocating pump
B.
vane pump
C.
screw pump
D.
centrifugal pump
【单选题】How is the oily water separator?
A.
It is in good order
B.
There is something wrong with it
C.
It is working well
D.
It is in normal condition
【单选题】对于自耦变压器,等值电路中各绕组的电阻,下述说法中正确的是( )。
A.
等值电路中各绕组的电阻，是各绕组实际电阻按照变压器变比归算到同一电压等级的电阻值；
B.
等值电路中各绕组的电阻一定为正值，因为绕组总有电阻存在。
C.
等值电路中各绕组的电阻就是各绕组的实际电阻；
D.
等值电路中各绕组的电阻是各绕组的等效电阻归算到同一电压等级的电阻值；
【单选题】对于自耦变压器，等值电路中各绕组的电阻，下述说法中正确的是（ ）。
A.
等值电路中各绕组的电阻，是各绕组实际电阻按照变压器变比归算到同一电压等级的电阻值
B.
C.
等值电路中各绕组的电阻就是各绕组的实际电阻
D.
E.
等值电路中各绕组的电阻是各绕组的等效电阻归算到同一电压等级的电阻值
F.
G.
等值电路中各绕组的电阻一定为正值，因为绕组总有电阻存在。
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