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【单选题】
晶闸管属于()型的半导体器件
A.
B.
半控型
C.
不可控
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参考答案：
举一反三
【单选题】两个质量分别为【图片】和【图片】、半径同为【图片】匀质实心滑轮，用不可伸长轻绳缠绕在滑轮的外侧，定滑轮可无摩擦的转动。将系统从静止释放，求绳中的张力和下面滑轮的质心加速度。【图片】
A.
，
B.
，
C.
，
D.
，
查看完整题目与答案
【单选题】What keeps Grimsvoto still?
A.
The slow flow of water．
B.
The low water temperature．
C.
The thick glacier．
D.
The water pressure．
查看完整题目与答案
【单选题】有A、B两个半径相同、质量相同的细圆环，A环质量分布均匀，B环质量分布不均匀，设他们对过环心中心轴的转动惯量分别为【图片】和【图片】，则有（ ）
A.
= ，
B.
< ，
C.
> ，
D.
无法确定
查看完整题目与答案
【判断题】由于暴雨和泥石流导致铁路货物运输受阻,造成货物逾期运到,为此铁路运输承运人应当承担赔偿责任。
A.
正确
B.
错误
查看完整题目与答案
【单选题】If the water temperature had increased after submerging resistor B, which of the following statements would have been most accurate?
A.
The fact that the water temperature increased after submerging Resistor B shows that resistor B is a thermistor.
B.
The fact that the water temperature increased after submerging Resistor B shows that resistor B is not an ohmic device.
C.
Since the measured current was the same when the initial water temperature was 23°C as when it was 25°C,resistor B is an ohmic device.
D.
Since the measured current was the same when the initial water temperature was 23°C as when it was 25°C,resistor B is not a thermistor.
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【判断题】膜片弹簧离合器在分离时，膜片弹簧会产生反向锥形变形，使压盘与从动盘分离。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The second stage feed-water temperature and shell absolute pressure in a multistage, flash type, distilling plant is ___.
A.
higher than the first stage feed-water temperature and absolute shell pressure
B.
lower than the first stage feed-water temperature and absolute shell pressure
C.
the same as the first stage feed-water temperature and absolute shell pressure
D.
not related to the feed-water temperature and absolute shell pressure
查看完整题目与答案
【判断题】膜片弹簧离合器在分离时,会产生反向锥形变形,使压盘与从动盘分离。
A.
正确
B.
错误
查看完整题目与答案
【多选题】Water temperature ( ).
A.
regulates biochemical reaction rates
B.
impacts the availability for aquatic life
C.
sinks incident radiation
D.
discharges thermal heat conduction
查看完整题目与答案
【判断题】汽车膜片弹簧离合器在分离时，膜片弹簧会产生反向锥形变形，使压盘与从动盘分离。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】两个质量分别为【图片】和【图片】、半径同为【图片】匀质实心滑轮，用不可伸长轻绳缠绕在滑轮的外侧，定滑轮可无摩擦的转动。将系统从静止释放，求绳中的张力和下面滑轮的质心加速度。【图片】
A.
，
B.
，
C.
，
D.
，
查看完整题目与答案
【单选题】What keeps Grimsvoto still?
A.
The slow flow of water．
B.
The low water temperature．
C.
The thick glacier．
D.
The water pressure．
查看完整题目与答案
【单选题】有A、B两个半径相同、质量相同的细圆环，A环质量分布均匀，B环质量分布不均匀，设他们对过环心中心轴的转动惯量分别为【图片】和【图片】，则有（ ）
A.
= ，
B.
< ，
C.
> ，
D.
无法确定
查看完整题目与答案
【判断题】由于暴雨和泥石流导致铁路货物运输受阻,造成货物逾期运到,为此铁路运输承运人应当承担赔偿责任。
A.
正确
B.
错误
查看完整题目与答案
【单选题】If the water temperature had increased after submerging resistor B, which of the following statements would have been most accurate?
A.
The fact that the water temperature increased after submerging Resistor B shows that resistor B is a thermistor.
B.
The fact that the water temperature increased after submerging Resistor B shows that resistor B is not an ohmic device.
C.
Since the measured current was the same when the initial water temperature was 23°C as when it was 25°C,resistor B is an ohmic device.
D.
Since the measured current was the same when the initial water temperature was 23°C as when it was 25°C,resistor B is not a thermistor.
查看完整题目与答案
【判断题】膜片弹簧离合器在分离时，膜片弹簧会产生反向锥形变形，使压盘与从动盘分离。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The second stage feed-water temperature and shell absolute pressure in a multistage, flash type, distilling plant is ___.
A.
higher than the first stage feed-water temperature and absolute shell pressure
B.
lower than the first stage feed-water temperature and absolute shell pressure
C.
the same as the first stage feed-water temperature and absolute shell pressure
D.
not related to the feed-water temperature and absolute shell pressure
查看完整题目与答案
【判断题】膜片弹簧离合器在分离时,会产生反向锥形变形,使压盘与从动盘分离。
A.
正确
B.
错误
查看完整题目与答案
【多选题】Water temperature ( ).
A.
regulates biochemical reaction rates
B.
impacts the availability for aquatic life
C.
sinks incident radiation
D.
discharges thermal heat conduction
查看完整题目与答案
【判断题】汽车膜片弹簧离合器在分离时，膜片弹簧会产生反向锥形变形，使压盘与从动盘分离。
A.
正确
B.
错误
查看完整题目与答案
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