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【判断题】
S- 曲线是经过高度抽象化的生命周期曲线
A.
正确
B.
错误
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【单选题】当硅二极管加上0.4V正向电压时,该二极管相当于 。
A.
很小的电阻
B.
很大的电阻
C.
短路
D.
绝对开路
【单选题】当硅二极管加上0.4V正向电压时,该二极管相当于( )
A.
小的电阻
B.
很大的电阻
C.
短路
D.
电阻
【单选题】The author holds that in the seventeenth-century New England
A.
Puritan tradition dominated political life.
B.
intellectual interests were encouraged.
C.
Politics benefited much from intellectual endeavors.
D.
intellectual pursuits enjoyed a liberal environment.
【单选题】当硅二极管加上 0.4V 正向电压时,该二极管相当于( )
A.
很小的电阻
B.
很大的电阻
C.
短路
D.
电阻
【单选题】In the seventeenth century English inns set _______ for accommodations in other parts of Europe.
A.
the mode
B.
the way
C.
the standard
D.
the taverns
【单选题】Who won the Civil War in the seventeenth century?
A.
the Cavaliers
B.
the Roundheads
C.
the Vikings
【单选题】Where was the main staircase located in a seventeenth-century house?
A.
In the porch
B.
In the hall
C.
In the parlor
D.
In the bedroom
【单选题】输入 100Hz 脉冲信号,要获得 10H Z 的输出脉冲信号需要用多少进制计数器实现( )
A.
100
B.
10
C.
50
D.
5
【单选题】当硅二极管加上 0.4V 正向电压时,该二极管相当于
A.
很小的电阻
B.
很大的电阻
C.
断路
【单选题】听力原文:In the seventeenth century, European soldiers who came across some Indians in the Old World to find them living in a society without a formal headship. What is the profession of the speaker?
A.
A historian.
B.
A social worker.
C.
A political leader.
D.
An old soldier.
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