用水泥胶砂强度检验方法测得的一组试块28d龄期抗折强度的数据:7.3(7)MPa,6.3MPa和7.6(5)MPa,则该组试块28d的抗折强度为()。
A. 6.3MPa
B. 7.3MPa
C. 7.1MPa
D. 该组结果作废,应重做试验
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Cold water flowing southward through the western part of the Bering Strait between Alaska and Siberia is joined by water circulating counterclockwise in the Bering Sea to form the().
Alaska Current
B. Subarctic Current
C. Kuroshio Current
D. Oyashio Current