第27题: [单项选择]According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is (). A. welcome B. admitted in some special sea areas C. prohibited D. acceptable 参考答案:C
第28题: [多项选择]下列哪些是缺铁性贫血的原因() A. 先天储铁不足 B. 铁摄入量不足 C. 铁丢失过多 D. 铁吸收障碍 E. 生长发育快 参考答案:A, B, C, D, E