单选题 Apart from its low cost, the appeal of iron as a building material lay in its strength, its ______ to fire, and its potential to span vast areas.
  • A. assignment
  • B. resistance
  • C. adjustment
  • D. liability
【正确答案】 B
【答案解析】[解析] assignment分配，指定；resistance抗耐性，抵抗力；adjustment调整，调节；liability责任。答案是B。