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【单选题】
关于流行病学研究方法的叙述,下列哪错误的A.
人群现场是流行病学主要的实验室
B.
理论流行病学研究又称数理流行病学
C.
分析性研究可人为控制研究条
D.
流行病学研究可用于疾病诊断及预后评价
E.
病例对照研究可提供病因线索
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反馈参考答案：
举一反三
【单选题】羊水过多但仍为正常胎儿者,正确的处理方法是()[单选题]
A.
缩宫素引产
B.
立即剖宫产
C.
胎吸引产
D.
应根据羊水过多的程度与胎龄决定处理方法
E.
顺其自然,无需处理
【单选题】Toward the prospect of peer-to-peer renting, the author's attitude can be said to be______.
A.
objective
B.
pessimistic
C.
suspicious
D.
optimistic
【多选题】Task 2: Listen to the audio clip again. Choose the statements from the following that are true about peer-to-peer learning and peer-to-peer grading for online learning.
A.
Students are reluctant to learn with and from each other on a digital campus.
B.
Peer-to-peer learning is a core component of an open online course.
C.
Students ensure quality control by voting for helpful responses.
D.
Students have to finish many multiple choice questions online.
E.
Students can make assessments of others’ work and provide qualitative feedback.
【多选题】Listen to the audio clip again. Tick the statements that are true about peer-to-peer learning and peer-to-peer grading for online learning.
A.
Students are reluctant to learn with and from each other on a digital campus.
B.
Peer-to-peer learning is a core component of an open online course.
C.
Students ensure quality control by voting for helpful responses.
D.
Students have to finish many multiple choice questions online.
E.
Students can make assessments of others’ work and provide qualitative feedback.
【单选题】关于peer-to-peer (or P2P)网络，下面哪句话是正确的？
A.
一个 peer是参考模型某层上的一个peer entity。
B.
一个 peer既是一个服务端，也是一个客户端。
C.
Peer用户越少，网络越快。
D.
上述说法都不对。
【简答题】最早的红茶生产从( )的小种红茶开始。A. 云南昆明 B. 安徽祁门 C. 福建崇安 D. 四川广安 C. 福建崇安 D. 四川广安
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