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【判断题】
理想电流源能向负载提供一个恒定的电流 ,该电流不会因外接电路改变而改变。A.
正确
B.
错误
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举一反三
【简答题】Listen to the talk and fill in the blanks with the NO MORE THAN THREE words.
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A.
More than three years.
B.
Less than three years.
C.
Three years.
【单选题】She showed the visitors around the museum, the construction had taken more than three years.
A.
for which
B.
with which
C.
of which
D.
to which
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