皮皮学，免费搜题
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【多选题】
口腔前庭检查应警惕艾滋病的早期口腔表现，常见体征有（）
A.
牙龈线性红斑
B.
口炎
C.
白色念珠菌感染
D.
黏膜、牙龈新生物
E.
坏死性牙周炎
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举一反三
【判断题】间接合成法又称锁相合成法,通过锁相环完成频率的加、减、乘、除。
A.
正确
B.
错误
查看完整题目与答案
【单选题】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】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
【单选题】神农尝百草,日遇七十二毒,得荼而解,说明人类这一时期对茶的利用属于( )价值。
A.
食用
B.
饮用
C.
药用
D.
药食同用
查看完整题目与答案
相关题目：
【判断题】间接合成法又称锁相合成法,通过锁相环完成频率的加、减、乘、除。
A.
正确
B.
错误
查看完整题目与答案
【单选题】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】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
【单选题】神农尝百草,日遇七十二毒,得荼而解,说明人类这一时期对茶的利用属于( )价值。
A.
食用
B.
饮用
C.
药用
D.
药食同用
查看完整题目与答案