四六级考试

【单选题】 People tend to ignore the delayed effects of exposure to chemicals because
A．limited exposure to them does little harm to people's health
B．the present is more important for them than the future
C．the danger does not become apparent immediately
D．humans are capable of withstanding small amounts of poisoning

网考网参考答案：C
网考网解析：
此题对应了原文的最后一段的倒数第二句话，人类本性只留意那些有信号的危险，言下之意，忽视潜伏危险的原因是它们不会马上发作。 查看试题解析出处>>