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【单选题】
Which of the following prefix has the same meaning with the prefix of "multimedia"?A.
peri-
B.
intra-
C.
hypo-
D.
poly-
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反馈参考答案：
举一反三
【简答题】As soon as I jumped in, I felt like I was back in that pool, breathless, struggling, terrified. (Para. 12, L4)
【单选题】You can borrow the book ______you keep it clean. A.as far as B.as long as C.as soon as
A.
as far as
B.
as long as
C.
as soon as
D.
as short as
【简答题】q ī ng w ā q ī ng shu ǐ ( )( ) ( )( ) sh ē ng q ì q ǐ ng w è n ( )( ) ( )( ) x ī n q í ng ( )( )
【单选题】下列关于患病率的论述正确的是
A.
患病率一般用来描述病程较长的慢性病存在或流行的频率,说明此类疾病流行的公共卫生学意义,对于急性病和病程短的疾病价值不大
B.
患病率计算时的分子是一定时期内的新旧病例数
C.
在对不同地区进行患病率的比较时,应考虑年龄、性别等的构成,进行率的标准化
D.
在发病率、病程均稳定的情况下,患病率等于发病率乘以病程
E.
以上都正确
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