微卫星DNA(microsatelliteDNA)
参考答案:重复单元1~6 bp的短串联重复(short tandem repeats,STR),涵盖区域小于150 bp。
任务型阅读。
My name is Dave. I'm from (A) _____. Now I am in Shanghai with my parents,but my two
grandparents aren't in China. I have got a sister. (B) got, I, any, or, aunts, haven't, uncles. So there are 6
people in my family.
My grandpa is sixty years old. He is a university teacher. (C)His students like him very much. His
favourite food is cake. My grandma doesn't work now. She likes eggs and fish. Now my grandparents
live in a big house with my sister in New York. I miss them very much. I love my family.
1. 将A处补充完整。
_____________________.
2. 将B处连词成句。
3. 将C处翻译成汉语。
4. 从文中找出与下句意义相近的句子。
My grandparents and my sister live in a big house in New York now.
5. 根据短文内容,写出文章的标题。
________________________.
一种圆柱形铁皮烟囱,底面半径2分米,高3米,做20节这样的烟囱至少需要多少平方分米铁皮?(得数保留整平方分米)