题目计算m2⋅m3m^{2}\cdot m^{3}m2⋅m3的结果是（ ）A.m5m^{5}m5B.2m52m^{5}2m5C.m6m^{6}m6D.2m62m^{6}2m6知识点：去括号与添括号章节：未标注
