单选题 Scientists generally hold that language has been so long in use that the length of time writing is known to cover is ______ in comparison.
  • A. overwhelming
  • B. uninspiring
  • C. astounding
  • D. trifling
【正确答案】 D
【答案解析】[解析] 各项的意思为：overwhelming压倒性的；uninspiring不鼓舞人的；astounding令人惊骇的；trifling微不足道的。所以，本题选D。