Misleading

來源: myquestion 於 2013-11-15 18:38:52 [舊帖] [給我悄悄話] 本文已被閱讀：次

加拿大的肺癌占癌症的14%，肺癌的死亡率高
加拿大的肺癌患者逐年減少

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