单选题 Americans are eating ______ vegetables per person today as they did in 1910.
  • A. more than twice
  • B. twice more
  • C. as twice
  • D. more than twice as many
【正确答案】 C
【答案解析】[解析] 句子结构题。根据句子中出现的as they did in 1910，可知本句应该用as…as…的比较句型，因此排除[A] 和[B] 再者，more than比较级和as…as…同级比较不能连用，故 [D] 也应当排除。因而[C] 是最佳答案。