【单选题】【消耗次数：1】
综合描述疾病的三间分布，最经典的流行病学方法是
①
出生队列分析
②
横断面研究
③
移民流行病学
④
病例对照研究
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相关题目
【简答题】
试述流行病学实验研究与队列研究的异同。
【简答题】
3、流行病学的研究方法有哪些？
【单选题】
关于“流行病学”，下列说法错误的是
①
流行病学从群体角度研究疾病与健康
②
流行病学研究的病种仅限于传染病
③
流行病学从疾病分布入手探讨疾病的流行因素
④
流行病学属于预防医学的范畴
随机题目
【单选题】
The moon ____ to a large mirror which reflects the sun’s light to the earth.?
①
compares ?
②
can compare ?
③
can be compared ?
④
may compare?
【单选题】
Most electronic devices of this kind, ____ manufactured for such purposes, are tightly packed.
①
that are
②
as are
③
which is
④
it is
【单选题】
I am very ____sitting on this old, broken chair.
①
comfortably
②
uncomfortably
③
commonly
④
uncommonly
【单选题】
You can take as many as you like because they are free of ____ .?
①
fare ?
②
charge ?
③
money ?
④
pay?
【单选题】
Theorganizationhad ____ hisrequestforresearchfunding.
①
agreed
②
returned
③
objected
④
rejected
【单选题】
Our manager will look into the matter as soon as possible. Just have a little ____ after an operation.
①
wait
②
time
③
patience
④
rest
【单选题】
We solved the problem
by using a computer rather than ____ it all by hand.
①
to do
②
do
③
does
④
having done
【单选题】
____ we could not live at all.
①
If it was not for the sun
②
If it shouldn’t be for the sun
③
Were it not for the sun
④
Had it not been for the sun