【简答题】【消耗次数：1】
简述临床试验和队列研究的异同点。
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相关题目
【简答题】
比较病例对照研究和队列研究的异同点。
【简答题】
栈和队列的异同点？
【单选题】
对圆锥动力触探（DPT）和标准贯入试验（SPT）异同点描述有误的是（）。
①
圆锥动力触探（PT）和标准贯入试验（SPT）的基本原理一致
②
标准贯入试验实质上是动力触探试验的一种
③
标准贯入试验和圆锥动力触探的区别主要是它的触探头不是圆锥形，而是标准规格的圆筒形探头
④
以上均不对
随机题目
【单选题】
We looked for a table to sit down, but they were all ____.
①
reserved for
②
engaged in
③
used up
④
taken up
【单选题】
It is ____ with the customer not to let the shop
assistants guess what she really likes and wants until
the last moment.
①
in her honor
②
on her honor
③
a point of honor
④
an honor
【单选题】
But the Swiss discovered long years ago that
constant warfare brought them ____suffering and
poverty.
①
anything but
②
nothing but
③
none other than
④
no more than
【单选题】
Information and opinion gap exercises have to have
some content ___ talking about.
①
worthwhile
②
worthily
③
worth
④
worthy
【单选题】
Jane tried to ____ the doorman with money, but she
failed.
①
bribe
②
corrupt
③
award
④
endow
【单选题】
He packed an ____ shirt in case he had to stay another day.
①
spare
②
unnecessary
③
excessive
④
extra
【单选题】
I was awfully tired when I got home from work, but a
half hour nap ____ me.
①
revived
②
released
③
relieved
④
recovered
【单选题】
An institution that properly carries the name university is a more comprehensive and complex institution than any other kind of higher education ____.
①
settlement
②
establishment
③
construction
④
structure
【单选题】
Jane is in a hurry because the train to the airport leaves ______ half an hour.
①
by
②
in
③
for
④
until