单选题 Without question, people's lives in China have improved dramatically in the past two decades.
  • A. Out of the question
  • B. No doubt
  • C. Naturally
  • D. Obviously


【正确答案】 B
【答案解析】without questions意为“没有问题，毫无疑问”，out of the question意为“不可能的”，no doubt意为“毫无疑问”，naturally意为“自然地”，obviously意为“显然地”。故答案为B。