观察后面的等式:31=3,32=9,33=27,34=81,35=243,36=729,37=2187…,则3+32+33+34+…+32014的末位数字是( )
A.2 | B.1 | C.3 | D.7 |
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观察后面的等式:31=3,32=9,33=27,34=81,35=243,36=729,37=2187…,则3+32+33+34+…+32014的末位数字是( )
A.2 | B.1 | C.3 | D.7 |
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