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【判断题】
操作系统是一种计算机的操作规范。A.
正确
B.
错误
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举一反三
【单选题】Which is the longest river in England?
A.
The Thames
B.
The Severn
C.
The Clyde
D.
The Ness
【单选题】Which is the longest river in the UK?
A.
River Severn
B.
River Thames
C.
Loch Ness
D.
The Great Lakes
【单选题】Which is the longest river in the Great Britain?
A.
Lough Neagh
B.
River Thames
C.
River Clyde
D.
River Severn
【单选题】Which is the longest river in the world ?
A.
The Yangtze Rive
B.
The Amazon
C.
The Nile River
D.
The Rhine River
【单选题】Which is the longest river in the world?
A.
The Yellow River
B.
The Amazon River
C.
The Nile
D.
The Yangtze River
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