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【单选题】
The temperature reflected by the transformer thermometer is transformer ().
A.
The upper temperature
B.
The middle temperature
C.
The lower temperature
D.
Interturn temperature
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】下列有关颞骨与耳部CT平扫检查技术的叙述,错误的是()
A.
横轴位扫描听眶下线垂直于床面
B.
扫描范围自岩锥上缘扫描至乳突尖部
C.
冠状位扫描应尽量使听眶下线平行于台面
D.
逐层扫描层厚1.0mm,层间距1.0mm
E.
容积扫描重建层厚0.7mm,层间距0.7mm
【多选题】有关耳部CT图像质量控制的叙述,正确的是()
A.
嘱患者去除金属饰品,检查时保持头部不动
B.
图像在满足诊断需求前提下尽量使用低kV、mAs扫描
C.
根据病变大小设定合适的层厚,保证图像的分辨率
D.
重建层厚薄,重建增量小,FOV小,可提高重组图像的空间分辨率
【单选题】The +40℃ oil level line of the transformer oil pillow oil level meter is the oil standard position line marked ().
A.
Transformer temperature at +40℃;
B.
Ambient temperature at +40℃;
C.
When the temperature of transformer rises to +40℃;
D.
Transformer temperature at +30℃.
【单选题】下列有关颞骨与耳部CT增强扫描的叙述,错误的是()
A.
对比剂注射速率3ml/s
B.
血管性病变,注射开始后延迟20s开始扫描
C.
炎性和肿瘤性病变,注射开始60s开始扫描
D.
检查结束后观察20分钟病人无不适后方可离开
E.
如病情允许嘱咐病人多饮水,以利于对比剂排泄
【单选题】The rated voltage of the secondary side of the three-phase transformer refers to ()the voltage of the secondary side when the rated voltage is added to the original side.
A.
Line voltage at no load
B.
Phase voltage at no load
C.
Line voltage at rated load
【单选题】The oil storage tank of the transformer is located above the transformer oil tank and is communicated with the oil tank through ().
A.
Cooling device
B.
Gas relay
C.
Moisture absorption device
【单选题】The estimated quantity of dinosaurs underground here is over ______ .
A.
100
B.
400
C.
800
D.
1000