【简答题】【消耗次数：1】
比较病例对照研究和队列研究的异同点。
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相关题目
【简答题】
简述临床试验和队列研究的异同点。
【简答题】
栈和队列的异同点？
【单选题】
以下哪种属于病例对照研究的缺点（ ）
①
不适合暴露比例高的因素
②
存在回忆偏倚
③
可以测定暴露和非暴露组疾病的率
④
研究周期长，失访率高
⑤
不适用于罕见病的研究
【单选题】
下列哪项不属于巢式病例对照研究的特点（ ）
①
在疾病诊断前收集暴露资料，选择偏倚和信息偏倚较小
②
研究中的病例与对照来自于同一队列，其可比性好
③
研究样本量小于经典的队列研究，节约人力和物力
④
统计效率和检验效率低于传统病例对照研究
⑤
以上都包括
随机题目
【单选题】
I will give this dictionary to ____ wants to have it.
①
whomever
②
someone
③
whoever
④
anyone
【单选题】
The mountain is ____ 6.3 kilometers high, but it is not the highest one.
①
nearly
②
near
③
neat
④
neatly
【单选题】
A new teacher was sent to the village in place of ____ one who had retired.
①
a
②
the
③
an
④
Its
【单选题】
Jack, the boss, asked Steven to leave — ____, she was filed.?
①
whats more ?
②
in addition?
③
on the contrary ?
④
D. in other words ?
【单选题】
He’s never again written ____ as his first one.
①
so good a book
②
such good a book
③
such good book
④
so a good book
【单选题】
“Where do you suggest going?” “We promised ____ the children to the West Lake.”
①
taking
②
to take
③
taken
④
took
【单选题】
Don’t be too ____ about things you are not supposed to know. ?
①
strange ?
②
amusing ?
③
curious ?
④
conscious?
【单选题】
To their surprise, they had much ____ and they even went to the same college. ?
①
in the same ?
②
in common ?
③
all the same ?
④
common things ?
【单选题】
____ little earlier this morning! I missed the school bus by only a minute and had to wait in the cold for nearly an hour!
①
If I had got up
②
If only I get up
③
If only I had got up
④
If I got up