若8.0473=521.077119823,则0.80473等于A.0.521077119823B.52.1077119823C.571077.119823D.0.00521077119823
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A
解析分析:先根据()3=,找出8.0473与0.80473之间的关系,再解答即可.
解答:∵()3=,∴将8.0473=512.077119823的小数点向前移三位得0.512077119823,即为0.80473的值,故选A.
点评:本题考查的是有理数乘方的法则,即求n个相同因数积的运算,叫做乘方.