问题
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The fire of electrical equipment is classified as fire.
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In an alternating current electrical system, a low system power factor is a direct sign of _____.
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Lightning is a ________ of electrical current fro
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Lightning is a ________ of electrical current from
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Please ______ from smoking until the airplane is airborne.[1997]A.refrainB.preventC.resist
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The amount of heat produced by this electrical apparatus is______at will by turning a smal
最新题目
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The accused man ______ his innocence by proving that he was aboard when the murder was com..
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Her interest in redecorating the big house kept her ______ for a whole week.A.constrainedB..
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The medicine______his pain but did not cure his illness.A.mediatedB.deterioratedC.activate..
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A.rarelyB.soC.tooD.not..
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Stratford-on-Avon as we all know has only one industry--William Shakespeare--but there a..
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According to the passage what is an important consideration of international corporations..
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