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已知一搅拌站生产了一批C35混凝土,强度分别为35.0MPa,39.8MPa,42.8MPa,44.8MPa,34.9MPa,37.6MPa,38.8MPa,40.8MPa,41.4MPa,45.5MPa,44.8MPa,该组混凝土强度标准差为3.76 MPa,试对其进行评定。

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