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提问人：网友shudisz 发布时间：2022-01-06

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For any 3 given numbers, which of the following is always equivalent to adding the 3 numbe

rs together and then dividing the sum by 3？ Ⅰ. Ordering the 3 numbers numerically, from highest to lowest, and then selecting the middle number. Ⅱ. Dividing each of the numbers by 3 and then adding the results together. Ⅲ. Multiplying each number by 6, adding the resulting products together, and then dividing the sum by 9.

A．Ⅰ only

B．Ⅱ only

C．Ⅰ and Ⅱ only

D．Ⅱ and Ⅲ only

E．None of the above

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