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【单选题】
单相交流调压电路,带阻感负载时,若负载阻抗角为 Ф ,则 α 的移相范围是( )度。A.
Ф ≤ α ≤ 180
B.
0≤ α ≤ 180
C.
0≤α≤Ф
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【单选题】The first part of this paper is the _______ review.
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【单选题】听力原文： The first magazine was a little periodical called The Review and it was started in London in 1704. It looked a lot like the newspapers of the time, but in terms of its content, it was much diffe...
A.
Its publication was banned by the British government.
B.
It was the first weekly newspaper.
C.
It caused a prison revolt.
D.
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