根据“冀教版八年级英语上册Unit 8《Celebrating Me》Lesson 61 I Am a Good Person” 的课文

内容选择正确答案。

1. It's time for Li Ming _____.      

A. to clean the blackboard  

B. to talk about his family  

C. to give his report

D. to read the text

2. How does Li Ming begin with his report?

A. By introducing himself

B. By telling a story.

C. By singing an English song.

D. By playing a game.

3. Ms Liu asked Li Ming to talk to the class about _____.

A. the English names  

B. the Chinese names  

C. his pen pals from England  

D. his techniques for learning English

对某一疾病危险因素研究，某因素在病因学上与疾病无关联，但可以引起所研究疾病的症状，从而提高了该疾病的检出率，引起对该无关因素的过高估计，这种偏倚是（）

A.奈曼偏倚

B.排出偏倚

C.混杂偏倚

D.检出偏倚

E.易感性偏倚