题目

— Bill, does your sister have brown hair or red hair?— . She takes after my mother. A . Yes, she does B . No, she doesn't C . Brown hair D . I don't know 答案：C10．计算：（$\frac{1}{27}$）${\;}^{-\frac{1}{3}}$+（log316）•（log2$\frac{1}{9}$）=-5．