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【单选题】
下列哪项不是经日常生活接触传播疾病的特点A.
个人卫生习惯不良者发病率高
B.
发病率存在职业差别
C.
卫生条件差的地区性发病较多
D.
一般呈散发
E.
存在家庭聚集性
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皮皮学刷刷变学霸
举一反三
【单选题】By the mid-nineteenth century, the term 'ice-box' had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew w...
A.
The influence of ice on the diet.
B.
The transportation of goods to market.
C.
The development of refrigeration.
D.
Sources of the term 'ice-box'.
【单选题】（ ）是裴斯泰洛齐教学理论的核心，认为教育过程必须从一些最简单的因素开始，逐步提高儿童的认识水平。
A.
道德教育论
B.
自然教育论
C.
要素教育论
D.
活动教育论
【单选题】听力原文： By the mid-nineteenth century, the term 'icebox' had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade g...
A.
The growth of the American population.
B.
The expansion of cities.
C.
The change of the diet of ordinary citizens.
D.
The increasing need for food.
【简答题】By the mid-nineth century, the term 'icebox' had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew wi...
【简答题】By the mid-nineth century, the term 'icebox' had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew wi...
【简答题】By the mid-nineth century, the “icebox” had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with th...
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