单选题 The steadily rising cost of labor on the waterfront has greatly increased the cost of shipping cargo by water.
  • A. continuously
  • B. quickly
  • C. excessively
  • D. exceptionally


【正确答案】 A
【答案解析】steadily和continuously都可以表示“不断地”；quickly：迅速地；excessively：过度地、过量地；exceptionally：例外地。