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【单选题】
共发射极放大电路中三极管的 ( ) 是输入和输出回路的公共端。A.
基极
B.
发射极
C.
集电极
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【单选题】Which of the following statements about Roman Britain is true?
A.
The Romans remained in control of Britain for over 500 years.
B.
The Romans never treated the Britons as a subject people of slave class.
C.
During the four centuries, Romans and Britons had a lot of intermarriages.
D.
The Romans had no impact on the language or culture of ordinary Britons.
【单选题】About Roman invasions on Britain, which one is not true?
A.
They built a network of towns with straight roads across the country.
B.
Pushing into England, they built a gigantic wall, Hadrian’s Wall,to control the frontier.
C.
The Romans also brought the new religion, Christianity, to Britain.
D.
They introduced their language to Britain.
【单选题】Although she was a Roman Catholic, her ... and true concern for the dying, ... and ... ... the ... of ... and ....
A.
nationality... simplicity... boundaries ... religion... the abandoned... the outcast ... transcend ed ...
B.
simplicity...the abandoned... the outcast ... transcend ed ... boundaries ... religion... nationality
C.
the abandoned... transcend ed ... boundaries ... the outcast ... simplicity... religion...nationality
D.
transcend ed ... boundaries ... the outcast ... religion... simplicity...the abandoned... nationality
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