单选题 Women ______ drink more than two cups of coffee a day have a greater chance of having heart disease than those ______ don't.
  • A. who; /
  • B. /; who
  • C. who; who
  • D. /; /


【正确答案】 C
【答案解析】[考点] who引导定语从句
[解析] who引导定语从句，指代人，在从句中作主语，所以都不能省略。