测得一组混凝土数据为34.82MPa,28.45MPa,28.55MPa,28.47MPa,依据要求大于等于28.5MPa判定其合格,用全数值判定该组数据中合格值表达正确的是( )。

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问题 测得一组混凝土数据为34.82MPa,28.45MPa,28.55MPa,28.47MPa,依据要求大于等于28.5MPa判定其合格,用全数值判定该组数据中合格值表达正确的是(    )。

选项 A、34.82MPa,28.45MPa,28.55MPa,28.47MP
B、34.82MPa.28.55MPa
C、34.82Mpa,28.55MPa,28.47MP
D、34.82MPa

答案B

解析
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