问题
单项选择题
关于病因概念叙述中哪项是不正确的（）。
A.引起疾病的原因
B.与疾病发生有关的所有因素
C.包括直接因素和间接因素
D.是疾病发生有直接关系的致病因子
E.某些因素的存在或减少，使疾病发生频率增加或减少
答案
参考答案：D
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关于病因概念叙述中哪项是不正确的（）。
A.引起疾病的原因
B.与疾病发生有关的所有因素
C.包括直接因素和间接因素
D.是疾病发生有直接关系的致病因子
E.某些因素的存在或减少，使疾病发生频率增加或减少
参考答案：D
| 完形填空。 | |||
| My brother doesn't like doing exercise. Last night he __1__ again and again. Today my father took him to see a __2__ . The doctor said that my brother had a bad __3__ . He told my father to buy some __4__ and told my brother to have a good rest. __5__ happened to my brother? My brother said he kept the windows __6__ all night. But my father thought that my brother __7__ do more exercise every day. After taking __8__ medicine, he was much __9__ . My mother told us to take good care of ourselves. I will __10__ what my parents said. I will do more sports in the future. | |||
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