当制冷量大于15kw时，螺杆式压缩机的制冷效率最好。
更新时间:2024-11-15 17:55:28 1、正确正确
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Ihopeyouwillspendasmuchtimeasyoucan________yourEnglish.
Theteachers’union_________alawsuitagainstthedistrictcallingforrepairing“deplorable”schoolconditions.
Rock:______.
Sharon:Verywell,andtheexperimentisnearlyfinished.
—Doyoumind__________here?
—________.
____thecenterofourplanetarysystemwasconsideredasheresybythechurchintheMiddleAges.
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