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  • Exponents 日期:2011-09-20 10:03:00 来源:作文地带 好评:优秀英语作文

    作文地带导读:An exponent defines the number of times a number is to be multiplied by itself. For example, in ab, where a is the base, and b the exponent, a is multiplied by itself b times. In a numerical example, 25 = 2 2 2 2 2. An exp...

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