单选题 How can a nonscientist explain an abstract theory with such ______.
  • [A] confidence
  • [B] assurance
  • [C] self-possession
  • [D] insurance


【正确答案】 B
【答案解析】名词辨析题。assurance更强调把握性甚至暗示傲慢；confidence是对某人能力或资格坚定的信任；self-possession暗示通过控制自己而表现出的镇静；insurance意为“保险，保险单，保险业”。