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【单选题】
史称“珑峻苍穹，图第一工”的是( )
A.
白帝城
B.
古民居
C.
应县木塔
D.
人民英雄纪念碑
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举一反三
【单选题】{ In a half-wave rectifier circuit, for a typical real silicon diode (not ideal diode) at room temperature, the output voltage is less than the source voltage. This is because ( ). }
A.
There is no voltage drop across the diode.
B.
There is a voltage drop (approximately 0.7V) across the diode.
C.
The diode is in the reverse-bias region.
D.
There is a voltage drop (approximately 6V) across the diode.
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【单选题】某市一名学生在网上写给市长的 “ 从我做起,建设美丽城市的建议 ” 的帖子,得到了政府的积极回应。该学生参与民主决策的形式是
A.
社情民意反映制度
B.
社会公示制度
C.
专家咨询制度
D.
社会听证制度
查看完整题目与答案
【单选题】Diode suitable for high frequency operation is______. Choose A,B,C or D.
A.
Junction diode 结型二极管
B.
Planar diode 平面二极管
C.
Point contact diode 点接触二极管
D.
Anything you can 随便哪种均可
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【单选题】学前儿童美术欣赏的直觉感知美术形象的时期指儿童的( )
A.
O ～2岁
B.
3～4岁
C.
5 ～ 7岁
D.
2 ～ 7岁
查看完整题目与答案
【单选题】If one silicon diode and one germanium diode are connected in series, the voltage drop across the combination of the two diodes will be equal to __________.
A.
the forward drop equal to that of the silicon diode
B.
the forward drop equal to that of the germanium diode
C.
the forward drop equal to that of the sum of the voltage drops across the two diodes
D.
the forward drop equal to that of the difference of the voltage drops across the two diodes
查看完整题目与答案
【单选题】以下宝贝标题中的关键词,属于主关键词的是_________。
A.
沐浴露
B.
2017
C.
宝贝专用的沐浴露
D.
补水
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【单选题】The piecewise linear model, equivalent circuit of the diode consists of ( ).
A.
a junction capacitor, a battery, a small resistor, and the ideal diode
B.
a battery, a small resistor, and the ideal diode
C.
a battery and the ideal diode
D.
the ideal diode
查看完整题目与答案
【单选题】In a circuit, a diode is properly operated with a reverse-biased voltage and in breakdown region, the type of the diode is most probably ( )
A.
photodiode
B.
light-emitting diode
C.
Schottky barrier diode
D.
Zener diode
查看完整题目与答案
【判断题】间接合成法又称为锁相合成法，通过锁相环来完成频率的加、减、乘、除。
A.
正确
B.
错误
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【单选题】The zener diode works in the ________ area. When the zener diode works, the current limiting resistor must be added。
A.
reverse breakdown
B.
Forward conduction
C.
Variable resistance
D.
the diode is burned
查看完整题目与答案
相关题目：
【单选题】{ In a half-wave rectifier circuit, for a typical real silicon diode (not ideal diode) at room temperature, the output voltage is less than the source voltage. This is because ( ). }
A.
There is no voltage drop across the diode.
B.
There is a voltage drop (approximately 0.7V) across the diode.
C.
The diode is in the reverse-bias region.
D.
There is a voltage drop (approximately 6V) across the diode.
查看完整题目与答案
【单选题】某市一名学生在网上写给市长的 “ 从我做起,建设美丽城市的建议 ” 的帖子,得到了政府的积极回应。该学生参与民主决策的形式是
A.
社情民意反映制度
B.
社会公示制度
C.
专家咨询制度
D.
社会听证制度
查看完整题目与答案
【单选题】Diode suitable for high frequency operation is______. Choose A,B,C or D.
A.
Junction diode 结型二极管
B.
Planar diode 平面二极管
C.
Point contact diode 点接触二极管
D.
Anything you can 随便哪种均可
查看完整题目与答案
【单选题】学前儿童美术欣赏的直觉感知美术形象的时期指儿童的( )
A.
O ～2岁
B.
3～4岁
C.
5 ～ 7岁
D.
2 ～ 7岁
查看完整题目与答案
【单选题】If one silicon diode and one germanium diode are connected in series, the voltage drop across the combination of the two diodes will be equal to __________.
A.
the forward drop equal to that of the silicon diode
B.
the forward drop equal to that of the germanium diode
C.
the forward drop equal to that of the sum of the voltage drops across the two diodes
D.
the forward drop equal to that of the difference of the voltage drops across the two diodes
查看完整题目与答案
【单选题】以下宝贝标题中的关键词,属于主关键词的是_________。
A.
沐浴露
B.
2017
C.
宝贝专用的沐浴露
D.
补水
查看完整题目与答案
【单选题】The piecewise linear model, equivalent circuit of the diode consists of ( ).
A.
a junction capacitor, a battery, a small resistor, and the ideal diode
B.
a battery, a small resistor, and the ideal diode
C.
a battery and the ideal diode
D.
the ideal diode
查看完整题目与答案
【单选题】In a circuit, a diode is properly operated with a reverse-biased voltage and in breakdown region, the type of the diode is most probably ( )
A.
photodiode
B.
light-emitting diode
C.
Schottky barrier diode
D.
Zener diode
查看完整题目与答案
【判断题】间接合成法又称为锁相合成法，通过锁相环来完成频率的加、减、乘、除。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The zener diode works in the ________ area. When the zener diode works, the current limiting resistor must be added。
A.
reverse breakdown
B.
Forward conduction
C.
Variable resistance
D.
the diode is burned
查看完整题目与答案