欲了解总人群发病率中归因于暴露部分的大小时，常用的指标是（）

搜题请搜索小程序“爱下问搜题”

问题单项选择题 B型题

A.相对危险度

B.比值比

C.归因危险度

D.归因危险度百分比

E.人群归因危险度

答案

参考答案：E

改错题

短文改错（共10小题；每小题1分，满分10分）

Dear Editor,

Recently we have made a discussion about the prevent of global warming in our research

group. Everybody has become aware the green-house effect, what has drawn the attention of the world. Many scientists on the summit of COPENHAGEN warned any rise above 2 degrees could lead to a sea level rise threatening islands and coastal cities, kill off many specie of animals and plants. As a result of, every nation should work together to limit the release of carbon dioxide. Everybody should shoulder the responsible for fight against climate change, and a low carbon life is a must.

I think fight against global warming is part of environmental protection. If we humans are more friend to nature, nature will be friendly, too. It’s time everybody rethink our role in keeping peace with our mother, nature.

Yours sincerely,

Lihua

查看答案

问答题简答题

如果你回到家中，闻到一股浓烈的煤气味道，你意识到待在家中的小孩可能会发生煤气中毒，这时你应该以什么顺序来进行处理？

查看答案