皮皮学，免费搜题
登录
搜题
【多选题】
关于随机对照试验的依从和失访,以下哪些陈述是正确的A.
依从性不好可能造成效果低估
B.
失访可能造成效果低估或高估
C.
失访率越低越好
D.
ITT分析可以彻底解决失访造成的偏倚
E.
当两个比较组间失访率相同时，偏倚仍有可能发生
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】以下精神障碍在全球疾病负担中排首位的是
A.
酒依赖
B.
双相情感障碍 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
药物依赖
D.
精神分裂症及相关障碍
E.
单相抑郁 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】What class of device is the oyster wave energy generator?
A.
A point absorber
B.
A topping device
C.
An attenuator
D.
A surge device
【简答题】Part of the student body was a beanpole with hair on top who came into my class, sat down, folded his arms, and looked at me as if to say "All right, teach me something".(para 1) Questions: What can ...
【单选题】Part of the student body was a beanpole with hair on top who came into my class, sat down, folded his arms, and looked at me as if to say: “All right, damn you, teach me something.” (Para. 1) Q: What ...
A.
exaggeration
B.
parallel structure
C.
metaphor
D.
simile
【单选题】( )的新发展理念,正赋予中国全新的发展动能。
A.
发展、共享、创新、和谐、平等
B.
创新、协调、绿色、开放、共享
C.
绿色、开放、共享、绿色、和谐
D.
共享、协调、发展、绿色、和谐
【单选题】What is the purpose of a zone in JUNOS Software？（）
A.
A zone defines a group of security devices with a common management.
B.
A zone defines the geographic region in which the security device is deployed.
C.
A zone defines a group of network segments with similar security requirements.
D.
A zone defines a group of network segments with similar class-of-service requirements.
相关题目：
【单选题】( )的新发展理念,正赋予中国全新的发展动能。
A.
发展、共享、创新、和谐、平等
B.
创新、协调、绿色、开放、共享
C.
绿色、开放、共享、绿色、和谐
D.
共享、协调、发展、绿色、和谐