选择题：My mother taught me to do ________and subtraction.

题目内容：

My mother taught me to do ________and subtraction.
A. addiction B. addition C. adoption D. adjustment

参考答案：

17.Although vitamins ________ health, you cannot s

17.Although vitamins ________ health, you cannot skip the traditional health mea

10、在波士顿咨询集团法中，表示企业各SBUs年市场增长率高低的分界线是----（）① 20% ② 15% ③ 8% ④ 10%

市场增长率－相对市场占有率矩阵，即波士顿矩阵把公司从事的多项业务进行分类，处于矩阵高增长低市场占有率的业务属于（）。A. 瘦狗类 B. 明星类

19.A good meal usually __________ several tasty dishes, not just a sandwich. A.