单选题 The new anti-cholesterol drug is the ______ of years of research and countless safety trials.
  • (A) production
  • (B) produce
  • (C) product
  • (D) producer


【正确答案】 C
【答案解析】[词汇] product作品，产品
[错误答案] (A)生产(B)农产品(D)生产者