参考答案：C

解析：事实细节的理解和判断。将各选项中关键词与原文对比，发现选项a的说法可与原文第一句“Sweden’s rejection of the European Union’s common currency…” 相对应；选项b的说法可与原文“…big countries like France and Germany，who have bent the euro’s rules to suit themselves”相对应；选项d的说法可与原文“It distanced itself from the stagnant economic performance of the euro zone”相对应；只有选项c的说法在原文中找不到对应，因此该项的说法是错误的。 注意：掌握同义词的替换可快速解题。如原文中rejection与选项中refuse同义；bent the rule to suit themselves与tailor the rule to their own benefit同义，均指为自己利益而调整规则；sluggish与stagnant同义，均指经济的不景气。