皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
In a study of risk factors for the development of autism, investigators accessed records from MESTRO CARE (a hospital record system). They identified all children with a diagnosis of autism. They also identified children of similar age and sex who did not have autism. The investigators then looked to see how many children in each group lived near power lines before they were diagnosed with autism. The type of study design of this study was:
A.
cohort study
B.
case control study
C.
randomized controlled trail
D.
systematic review
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】听力原文:W: With us now, is Malcolm Bricklin, CEO of Vehicles. M:Hello,everyone. W:We have been hearing a couple of tings about this news that Ford Motor Company is slashing up to 30,000 jobs,shutting dow...
A.
It is closing down some factories in the US.
B.
It no longer offers high-paying jobs.
C.
The number of its employees is doubled after the restructuring.
D.
It is manufacturing as many cars as before.
【单选题】听力原文:Are there any questions about the proposal? (A) It's more a question of timing. (B) Not too many, thankfully. (C) That's what they've proposed. (14)
A.
B.
C.
【单选题】在E-R图中,用于表示联系的图形符号是( )。
A.
矩形
B.
椭圆
C.
菱形
D.
三角形
【单选题】小脑幕切迹疝时,出现意识障碍的损害部位是()
A.
大脑皮质
B.
丘脑
C.
脑桥
D.
中脑
E.
延髓
【单选题】听力原文:W: I don't believe we've ever met before, have we? M: We've been introduced at other parties. Don't you remember? Q: What does the man imply? (14)
A.
They've met before.
B.
He does not remember her.
C.
She agrees with him.
D.
They have never met before.
【单选题】听力原文:W: With us now, is Malcolm Bricklin, CEO of Visionary Vehicles. M: Hello, everyone. W: We have been hearing a couple of things about this news that [22] Ford Motor Company is slashing up to 30,00...
A.
It is closing down some factories in the US.
B.
It no longer offers high-paying jobs.
C.
The number of its employees is doubled after the restructuring.
D.
It is manufacturing as many cars as before.
【单选题】小脑幕切迹疝时,出现意识障碍的损害部位是
A.
大脑皮质
B.
丘脑
C.
中脑
D.
延髓
E.
桥脑
【单选题】在E-R图中,用于表示联系的图形符号是( ).
A.
椭圆
B.
菱形
C.
矩形
D.
三角形
【单选题】某保险公司有1000个客户,每个客户每年交500元保护费,但每年有10%的客户获得1500元理赔。该保险公司每年获利( )
A.
30万
B.
35万
C.
40万
D.
45万
【单选题】听力原文:W: I think we should take a break. We've been working here for 2 hours. M: I'd be glad to. I've been working looking through this microscope for 2 days. Q: Why are they going to stop working? (14...
A.
They have been working at the telescope for two days.
B.
They can't find the microscope.
C.
They've been working in the laboratory for two hours.
D.
They can't fix the microphone.
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题