预防佝偻病应强调（）
A.母乳喂养
B.及早添加辅食
C.及早口服鱼肝油
D.及早服用钙剂
E.经常晒太阳
参考答案：E
解析：皮肤的光照合成是小儿维生素D的主要来源。大量临床表明。婴幼儿有足够时间户外活动接触阳光，是治疗和预防佝偻病的关键。母乳中含维生素D量较少，故排除A。过早的添加辅食及鱼肝油，不利于婴幼儿的消化吸收，一般婴儿年龄大于4个月以上才添加辅食，排除B和C。在有手足抽搐症病史或小于3个月小婴儿，才需要用钙剂，排除D。故本题应选E。避错：本题部分考生会选择D，但首先应从小儿维生素D缺乏性佝偻病的病因出发考虑，其最主要的病因是日光照射不足，所以应强调经常晒太阳。且通常在治疗佝偻病时提倡补充维生素D，并非钙剂。
Anti-bird flu contingency (意外事故) measures, including a proposal to separate poultry from humans and a series of traffic and logistics (后勤) measures will be discussed at the Legislative Council's Food Safety and Environmental Hygiene Panel meeting next month. Secretary for Health, Welfare and Food Dr York Chow says the contingency plan would come into force if an outbreak occurred near Hong Kong. Speaking on a radio talk show this morning, Dr Chow said the separation of poultry from humans policy, which will be determined after a decision whether to set up a central slaughtering (屠宰) house or several regional ones, would be based on the demand for live chickens. He pointed out that at present there were 30,000 live chickens imported from the Mainland and 30,000 supplied locally. If this demand persisted, there would be no central slaughtering house or wholesale point that could handle such an amount and regional slaughtering houses could be the choice. He added that building of regional slaughtering houses took time, but stressed the need to study the views of the public and the sector before a final decision was made. Regarding avian flu vaccination (种痘) for humans, Dr Chow said it was still being developed. He added that it may not be reliable in the case of an outbreak as records show vaccination can only offer 5% protection against a virus. He said Hong Kong had more experience and expertise than neighbouring territories in the fight against viral outbreaks, and was willing to offer them help. He added there was no “boundary” for infectious diseases and close cooperation among different countries had to be maintained to fight against a possible outbreak. 小题1: It can be inferred from the first paragraph that ______.
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