问题
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When there is a flame failure in an automatically fired auxiliary boiler, the _____.
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He turned off the light and locked the door, believe nobody was in the room.()
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A.In the dancing room.B.Opposite the fireplace.C.Opposite the door.D.Beside the chest
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That revolving doors should have been installed in the entrance to the publishing house is
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An emergency diesel generator should automatically shut down in the event of ___________.A
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Unemployment insurance serves as the economys automatic stabilizer in that it______.A.prov
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